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Finding the Fourth Proportional to 292,519.70, 438,779.55 and 247,679.37

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Solution

The fourth proportional to 292,519.70, 438,779.55 and 247,679.37 is: 371,519.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,519.70 : 438,779.55 = 247,679.37 : x
  2. Step 2: Convert to fraction form
    292,519.70/438,779.55 = 247,679.37/x
  3. Step 3: Cross multiply
    292,519.70x = 438,779.55 × 247,679.37
  4. Step 4: Simplify right side
    292,519.70x = 108,676,640,318.99
  5. Step 5: Solve for x
    x = 108,676,640,318.99/292,519.70
  6. Step 6: Final answer
    x = 371,519.05

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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.