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Finding the Fourth Proportional to 497.07, 746.07 and 253.77

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Solution

The fourth proportional to 497.07, 746.07 and 253.77 is: 380.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    497.07 : 746.07 = 253.77 : x
  2. Step 2: Convert to fraction form
    497.07/746.07 = 253.77/x
  3. Step 3: Cross multiply
    497.07x = 746.07 × 253.77
  4. Step 4: Simplify right side
    497.07x = 189,330.18
  5. Step 5: Solve for x
    x = 189,330.18/497.07
  6. Step 6: Final answer
    x = 380.89

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.