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Finding the Fourth Proportional to 249,379.80, 373,996.80 and 89,437.20

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Solution

The fourth proportional to 249,379.80, 373,996.80 and 89,437.20 is: 134,129.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,379.80 : 373,996.80 = 89,437.20 : x
  2. Step 2: Convert to fraction form
    249,379.80/373,996.80 = 89,437.20/x
  3. Step 3: Cross multiply
    249,379.80x = 373,996.80 × 89,437.20
  4. Step 4: Simplify right side
    249,379.80x = 33,449,226,600.96
  5. Step 5: Solve for x
    x = 33,449,226,600.96/249,379.80
  6. Step 6: Final answer
    x = 134,129.66

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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.