Home / 438,723.48-658,085.40-158,240.70

Finding the Fourth Proportional to 438,723.48, 658,085.40 and 158,240.70

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Solution

The fourth proportional to 438,723.48, 658,085.40 and 158,240.70 is: 237,361.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,723.48 : 658,085.40 = 158,240.70 : x
  2. Step 2: Convert to fraction form
    438,723.48/658,085.40 = 158,240.70/x
  3. Step 3: Cross multiply
    438,723.48x = 658,085.40 × 158,240.70
  4. Step 4: Simplify right side
    438,723.48x = 104,135,894,355.78
  5. Step 5: Solve for x
    x = 104,135,894,355.78/438,723.48
  6. Step 6: Final answer
    x = 237,361.11

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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.