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Finding the Fourth Proportional to 349,818.60, 524,123.10 and 162,445.80

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Solution

The fourth proportional to 349,818.60, 524,123.10 and 162,445.80 is: 243,387.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,818.60 : 524,123.10 = 162,445.80 : x
  2. Step 2: Convert to fraction form
    349,818.60/524,123.10 = 162,445.80/x
  3. Step 3: Cross multiply
    349,818.60x = 524,123.10 × 162,445.80
  4. Step 4: Simplify right side
    349,818.60x = 85,141,596,277.98
  5. Step 5: Solve for x
    x = 85,141,596,277.98/349,818.60
  6. Step 6: Final answer
    x = 243,387.85

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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.