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Finding the Fourth Proportional to 377,519.63, 520,978.10 and 207,753.75

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Solution

The fourth proportional to 377,519.63, 520,978.10 and 207,753.75 is: 286,700.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,519.63 : 520,978.10 = 207,753.75 : x
  2. Step 2: Convert to fraction form
    377,519.63/520,978.10 = 207,753.75/x
  3. Step 3: Cross multiply
    377,519.63x = 520,978.10 × 207,753.75
  4. Step 4: Simplify right side
    377,519.63x = 108,235,154,462.26
  5. Step 5: Solve for x
    x = 108,235,154,462.26/377,519.63
  6. Step 6: Final answer
    x = 286,700.74

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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.