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Finding the Fourth Proportional to 637.97, 880.35 and 358.19

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Solution

The fourth proportional to 637.97, 880.35 and 358.19 is: 494.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    637.97 : 880.35 = 358.19 : x
  2. Step 2: Convert to fraction form
    637.97/880.35 = 358.19/x
  3. Step 3: Cross multiply
    637.97x = 880.35 × 358.19
  4. Step 4: Simplify right side
    637.97x = 315,328.16
  5. Step 5: Solve for x
    x = 315,328.16/637.97
  6. Step 6: Final answer
    x = 494.27

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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.