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Finding the Fourth Proportional to 247,056, 371,079.90 and 147,410.64

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Solution

The fourth proportional to 247,056, 371,079.90 and 147,410.64 is: 221,411.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,056 : 371,079.90 = 147,410.64 : x
  2. Step 2: Convert to fraction form
    247,056/371,079.90 = 147,410.64/x
  3. Step 3: Cross multiply
    247,056x = 371,079.90 × 147,410.64
  4. Step 4: Simplify right side
    247,056x = 54,701,125,550.14
  5. Step 5: Solve for x
    x = 54,701,125,550.14/247,056
  6. Step 6: Final answer
    x = 221,411.85

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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.