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Finding the Fourth Proportional to 439,480, 658,829.04 and 158,934.88

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Solution

The fourth proportional to 439,480, 658,829.04 and 158,934.88 is: 238,260.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,480 : 658,829.04 = 158,934.88 : x
  2. Step 2: Convert to fraction form
    439,480/658,829.04 = 158,934.88/x
  3. Step 3: Cross multiply
    439,480x = 658,829.04 × 158,934.88
  4. Step 4: Simplify right side
    439,480x = 104,710,914,412.92
  5. Step 5: Solve for x
    x = 104,710,914,412.92/439,480
  6. Step 6: Final answer
    x = 238,260.93

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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.