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Finding the Fourth Proportional to 371,937.32, 557,578.74 and 147,455.54

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Solution

The fourth proportional to 371,937.32, 557,578.74 and 147,455.54 is: 221,053.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,937.32 : 557,578.74 = 147,455.54 : x
  2. Step 2: Convert to fraction form
    371,937.32/557,578.74 = 147,455.54/x
  3. Step 3: Cross multiply
    371,937.32x = 557,578.74 × 147,455.54
  4. Step 4: Simplify right side
    371,937.32x = 82,218,073,461.94
  5. Step 5: Solve for x
    x = 82,218,073,461.94/371,937.32
  6. Step 6: Final answer
    x = 221,053.57

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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.