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Finding the Fourth Proportional to 358,724.16, 495,229.32 and 277,970.40

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Solution

The fourth proportional to 358,724.16, 495,229.32 and 277,970.40 is: 383,746.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,724.16 : 495,229.32 = 277,970.40 : x
  2. Step 2: Convert to fraction form
    358,724.16/495,229.32 = 277,970.40/x
  3. Step 3: Cross multiply
    358,724.16x = 495,229.32 × 277,970.40
  4. Step 4: Simplify right side
    358,724.16x = 137,659,092,172.13
  5. Step 5: Solve for x
    x = 137,659,092,172.13/358,724.16
  6. Step 6: Final answer
    x = 383,746.36

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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.