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Finding the Fourth Proportional to 425,179.32, 636,271.02 and 265,330.44

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Solution

The fourth proportional to 425,179.32, 636,271.02 and 265,330.44 is: 397,060.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,179.32 : 636,271.02 = 265,330.44 : x
  2. Step 2: Convert to fraction form
    425,179.32/636,271.02 = 265,330.44/x
  3. Step 3: Cross multiply
    425,179.32x = 636,271.02 × 265,330.44
  4. Step 4: Simplify right side
    425,179.32x = 168,822,069,695.85
  5. Step 5: Solve for x
    x = 168,822,069,695.85/425,179.32
  6. Step 6: Final answer
    x = 397,060.87

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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.