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Finding the Fourth Proportional to 637,135.42, 955,869.72 and 237,779.78

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Solution

The fourth proportional to 637,135.42, 955,869.72 and 237,779.78 is: 356,731.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,135.42 : 955,869.72 = 237,779.78 : x
  2. Step 2: Convert to fraction form
    637,135.42/955,869.72 = 237,779.78/x
  3. Step 3: Cross multiply
    637,135.42x = 955,869.72 × 237,779.78
  4. Step 4: Simplify right side
    637,135.42x = 227,286,491,730.26
  5. Step 5: Solve for x
    x = 227,286,491,730.26/637,135.42
  6. Step 6: Final answer
    x = 356,731.84

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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.