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Finding the Fourth Proportional to 372,573.68, 513,013.10 and 280,826.29

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Solution

The fourth proportional to 372,573.68, 513,013.10 and 280,826.29 is: 386,682.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,573.68 : 513,013.10 = 280,826.29 : x
  2. Step 2: Convert to fraction form
    372,573.68/513,013.10 = 280,826.29/x
  3. Step 3: Cross multiply
    372,573.68x = 513,013.10 × 280,826.29
  4. Step 4: Simplify right side
    372,573.68x = 144,067,564,831.53
  5. Step 5: Solve for x
    x = 144,067,564,831.53/372,573.68
  6. Step 6: Final answer
    x = 386,682.08

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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.