Home / 292,237.20-438,360.12-81,861.84

Finding the Fourth Proportional to 292,237.20, 438,360.12 and 81,861.84

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Solution

The fourth proportional to 292,237.20, 438,360.12 and 81,861.84 is: 122,793.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,237.20 : 438,360.12 = 81,861.84 : x
  2. Step 2: Convert to fraction form
    292,237.20/438,360.12 = 81,861.84/x
  3. Step 3: Cross multiply
    292,237.20x = 438,360.12 × 81,861.84
  4. Step 4: Simplify right side
    292,237.20x = 35,884,966,005.82
  5. Step 5: Solve for x
    x = 35,884,966,005.82/292,237.20
  6. Step 6: Final answer
    x = 122,793.97

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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.