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Finding the Fourth Proportional to 439,242.40, 658,876.40 and 158,709.92

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Solution

The fourth proportional to 439,242.40, 658,876.40 and 158,709.92 is: 238,069.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,242.40 : 658,876.40 = 158,709.92 : x
  2. Step 2: Convert to fraction form
    439,242.40/658,876.40 = 158,709.92/x
  3. Step 3: Cross multiply
    439,242.40x = 658,876.40 × 158,709.92
  4. Step 4: Simplify right side
    439,242.40x = 104,570,220,733.89
  5. Step 5: Solve for x
    x = 104,570,220,733.89/439,242.40
  6. Step 6: Final answer
    x = 238,069.50

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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.