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Finding the Fourth Proportional to 440,265, 607,565.70 and 239,061

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Solution

The fourth proportional to 440,265, 607,565.70 and 239,061 is: 329,904.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,265 : 607,565.70 = 239,061 : x
  2. Step 2: Convert to fraction form
    440,265/607,565.70 = 239,061/x
  3. Step 3: Cross multiply
    440,265x = 607,565.70 × 239,061
  4. Step 4: Simplify right side
    440,265x = 145,245,263,807.70
  5. Step 5: Solve for x
    x = 145,245,263,807.70/440,265
  6. Step 6: Final answer
    x = 329,904.18

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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.