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Finding the Fourth Proportional to 377,156.46, 520,475.92 and 207,390.59

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Solution

The fourth proportional to 377,156.46, 520,475.92 and 207,390.59 is: 286,199.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,156.46 : 520,475.92 = 207,390.59 : x
  2. Step 2: Convert to fraction form
    377,156.46/520,475.92 = 207,390.59/x
  3. Step 3: Cross multiply
    377,156.46x = 520,475.92 × 207,390.59
  4. Step 4: Simplify right side
    377,156.46x = 107,941,808,129.59
  5. Step 5: Solve for x
    x = 107,941,808,129.59/377,156.46
  6. Step 6: Final answer
    x = 286,199.02

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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.