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Finding the Fourth Proportional to 438,950.52, 605,800.88 and 247,976.21

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Solution

The fourth proportional to 438,950.52, 605,800.88 and 247,976.21 is: 342,234.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,950.52 : 605,800.88 = 247,976.21 : x
  2. Step 2: Convert to fraction form
    438,950.52/605,800.88 = 247,976.21/x
  3. Step 3: Cross multiply
    438,950.52x = 605,800.88 × 247,976.21
  4. Step 4: Simplify right side
    438,950.52x = 150,224,201,968.18
  5. Step 5: Solve for x
    x = 150,224,201,968.18/438,950.52
  6. Step 6: Final answer
    x = 342,234.93

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1.5x scale

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.