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Finding the Fourth Proportional to 400,522.96, 552,683.88 and 239,345.92

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Solution

The fourth proportional to 400,522.96, 552,683.88 and 239,345.92 is: 330,274.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,522.96 : 552,683.88 = 239,345.92 : x
  2. Step 2: Convert to fraction form
    400,522.96/552,683.88 = 239,345.92/x
  3. Step 3: Cross multiply
    400,522.96x = 552,683.88 × 239,345.92
  4. Step 4: Simplify right side
    400,522.96x = 132,282,631,727.77
  5. Step 5: Solve for x
    x = 132,282,631,727.77/400,522.96
  6. Step 6: Final answer
    x = 330,274.78

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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.