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Finding the Fourth Proportional to 514.92, 710.88 and 328.48

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Solution

The fourth proportional to 514.92, 710.88 and 328.48 is: 453.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    514.92 : 710.88 = 328.48 : x
  2. Step 2: Convert to fraction form
    514.92/710.88 = 328.48/x
  3. Step 3: Cross multiply
    514.92x = 710.88 × 328.48
  4. Step 4: Simplify right side
    514.92x = 233,509.86
  5. Step 5: Solve for x
    x = 233,509.86/514.92
  6. Step 6: Final answer
    x = 453.49

Related Problems

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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.