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Finding the Fourth Proportional to 540.72, 746.02 and 374.96

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Solution

The fourth proportional to 540.72, 746.02 and 374.96 is: 517.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.72 : 746.02 = 374.96 : x
  2. Step 2: Convert to fraction form
    540.72/746.02 = 374.96/x
  3. Step 3: Cross multiply
    540.72x = 746.02 × 374.96
  4. Step 4: Simplify right side
    540.72x = 279,727.66
  5. Step 5: Solve for x
    x = 279,727.66/540.72
  6. Step 6: Final answer
    x = 517.32

Related Problems

Find fourth proportional to 270.36, 373.01 and 187.48
Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.