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Finding the Fourth Proportional to 377,387.02, 520,793.31 and 207,620.74

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Solution

The fourth proportional to 377,387.02, 520,793.31 and 207,620.74 is: 286,516.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,387.02 : 520,793.31 = 207,620.74 : x
  2. Step 2: Convert to fraction form
    377,387.02/520,793.31 = 207,620.74/x
  3. Step 3: Cross multiply
    377,387.02x = 520,793.31 × 207,620.74
  4. Step 4: Simplify right side
    377,387.02x = 108,127,492,409.25
  5. Step 5: Solve for x
    x = 108,127,492,409.25/377,387.02
  6. Step 6: Final answer
    x = 286,516.19

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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.