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Finding the Fourth Proportional to 247,643.60, 371,465.40 and 60,655.10

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Solution

The fourth proportional to 247,643.60, 371,465.40 and 60,655.10 is: 90,982.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,643.60 : 371,465.40 = 60,655.10 : x
  2. Step 2: Convert to fraction form
    247,643.60/371,465.40 = 60,655.10/x
  3. Step 3: Cross multiply
    247,643.60x = 371,465.40 × 60,655.10
  4. Step 4: Simplify right side
    247,643.60x = 22,531,270,983.54
  5. Step 5: Solve for x
    x = 22,531,270,983.54/247,643.60
  6. Step 6: Final answer
    x = 90,982.65

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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.