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Finding the Fourth Proportional to 372,275.70, 558,413.55 and 268,077.30

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Solution

The fourth proportional to 372,275.70, 558,413.55 and 268,077.30 is: 402,115.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,275.70 : 558,413.55 = 268,077.30 : x
  2. Step 2: Convert to fraction form
    372,275.70/558,413.55 = 268,077.30/x
  3. Step 3: Cross multiply
    372,275.70x = 558,413.55 × 268,077.30
  4. Step 4: Simplify right side
    372,275.70x = 149,697,996,767.42
  5. Step 5: Solve for x
    x = 149,697,996,767.42/372,275.70
  6. Step 6: Final answer
    x = 402,115.95

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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.