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Finding the Fourth Proportional to 377,387.20, 520,775.52 and 207,616.96

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Solution

The fourth proportional to 377,387.20, 520,775.52 and 207,616.96 is: 286,501.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,387.20 : 520,775.52 = 207,616.96 : x
  2. Step 2: Convert to fraction form
    377,387.20/520,775.52 = 207,616.96/x
  3. Step 3: Cross multiply
    377,387.20x = 520,775.52 × 207,616.96
  4. Step 4: Simplify right side
    377,387.20x = 108,121,830,304.82
  5. Step 5: Solve for x
    x = 108,121,830,304.82/377,387.20
  6. Step 6: Final answer
    x = 286,501.05

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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.