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Finding the Fourth Proportional to 247,218.40, 371,605.20 and 242,552.80

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Solution

The fourth proportional to 247,218.40, 371,605.20 and 242,552.80 is: 364,592.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,218.40 : 371,605.20 = 242,552.80 : x
  2. Step 2: Convert to fraction form
    247,218.40/371,605.20 = 242,552.80/x
  3. Step 3: Cross multiply
    247,218.40x = 371,605.20 × 242,552.80
  4. Step 4: Simplify right side
    247,218.40x = 90,133,881,754.56
  5. Step 5: Solve for x
    x = 90,133,881,754.56/247,218.40
  6. Step 6: Final answer
    x = 364,592.12

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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.