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Finding the Fourth Proportional to 377,436.96, 520,991.28 and 234,280.80

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Solution

The fourth proportional to 377,436.96, 520,991.28 and 234,280.80 is: 323,387.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,436.96 : 520,991.28 = 234,280.80 : x
  2. Step 2: Convert to fraction form
    377,436.96/520,991.28 = 234,280.80/x
  3. Step 3: Cross multiply
    377,436.96x = 520,991.28 × 234,280.80
  4. Step 4: Simplify right side
    377,436.96x = 122,058,253,871.42
  5. Step 5: Solve for x
    x = 122,058,253,871.42/377,436.96
  6. Step 6: Final answer
    x = 323,387.13

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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.