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Finding the Fourth Proportional to 438,951.02, 605,801.56 and 247,976.70

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Solution

The fourth proportional to 438,951.02, 605,801.56 and 247,976.70 is: 342,235.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,951.02 : 605,801.56 = 247,976.70 : x
  2. Step 2: Convert to fraction form
    438,951.02/605,801.56 = 247,976.70/x
  3. Step 3: Cross multiply
    438,951.02x = 605,801.56 × 247,976.70
  4. Step 4: Simplify right side
    438,951.02x = 150,224,671,703.65
  5. Step 5: Solve for x
    x = 150,224,671,703.65/438,951.02
  6. Step 6: Final answer
    x = 342,235.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.