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Finding the Fourth Proportional to 451,713.68, 677,644.20 and 185,402.72

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Solution

The fourth proportional to 451,713.68, 677,644.20 and 185,402.72 is: 278,134.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,713.68 : 677,644.20 = 185,402.72 : x
  2. Step 2: Convert to fraction form
    451,713.68/677,644.20 = 185,402.72/x
  3. Step 3: Cross multiply
    451,713.68x = 677,644.20 × 185,402.72
  4. Step 4: Simplify right side
    451,713.68x = 125,637,077,872.22
  5. Step 5: Solve for x
    x = 125,637,077,872.22/451,713.68
  6. Step 6: Final answer
    x = 278,134.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.