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Finding the Fourth Proportional to 358,937.31, 495,336.81 and 197,798.13

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Solution

The fourth proportional to 358,937.31, 495,336.81 and 197,798.13 is: 272,963.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,937.31 : 495,336.81 = 197,798.13 : x
  2. Step 2: Convert to fraction form
    358,937.31/495,336.81 = 197,798.13/x
  3. Step 3: Cross multiply
    358,937.31x = 495,336.81 × 197,798.13
  4. Step 4: Simplify right side
    358,937.31x = 97,976,694,738.17
  5. Step 5: Solve for x
    x = 97,976,694,738.17/358,937.31
  6. Step 6: Final answer
    x = 272,963.25

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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.