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Finding the Fourth Proportional to 268,565.79, 370,620.92 and 147,715.28

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Solution

The fourth proportional to 268,565.79, 370,620.92 and 147,715.28 is: 203,847.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,565.79 : 370,620.92 = 147,715.28 : x
  2. Step 2: Convert to fraction form
    268,565.79/370,620.92 = 147,715.28/x
  3. Step 3: Cross multiply
    268,565.79x = 370,620.92 × 147,715.28
  4. Step 4: Simplify right side
    268,565.79x = 54,746,372,971.66
  5. Step 5: Solve for x
    x = 54,746,372,971.66/268,565.79
  6. Step 6: Final answer
    x = 203,847.16

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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.