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Finding the Fourth Proportional to 371,857.60, 557,130.30 and 231,452.20

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Solution

The fourth proportional to 371,857.60, 557,130.30 and 231,452.20 is: 346,769.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,857.60 : 557,130.30 = 231,452.20 : x
  2. Step 2: Convert to fraction form
    371,857.60/557,130.30 = 231,452.20/x
  3. Step 3: Cross multiply
    371,857.60x = 557,130.30 × 231,452.20
  4. Step 4: Simplify right side
    371,857.60x = 128,949,033,621.66
  5. Step 5: Solve for x
    x = 128,949,033,621.66/371,857.60
  6. Step 6: Final answer
    x = 346,769.93

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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.