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Finding the Fourth Proportional to 514,475.04, 771,766 and 140,498

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Solution

The fourth proportional to 514,475.04, 771,766 and 140,498 is: 210,761.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    514,475.04 : 771,766 = 140,498 : x
  2. Step 2: Convert to fraction form
    514,475.04/771,766 = 140,498/x
  3. Step 3: Cross multiply
    514,475.04x = 771,766 × 140,498
  4. Step 4: Simplify right side
    514,475.04x = 108,431,579,468
  5. Step 5: Solve for x
    x = 108,431,579,468/514,475.04
  6. Step 6: Final answer
    x = 210,761.59

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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.