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Finding the Fourth Proportional to 371,389.56, 557,164.29 and 115,216.93

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Solution

The fourth proportional to 371,389.56, 557,164.29 and 115,216.93 is: 172,850.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,389.56 : 557,164.29 = 115,216.93 : x
  2. Step 2: Convert to fraction form
    371,389.56/557,164.29 = 115,216.93/x
  3. Step 3: Cross multiply
    371,389.56x = 557,164.29 × 115,216.93
  4. Step 4: Simplify right side
    371,389.56x = 64,194,760,127.95
  5. Step 5: Solve for x
    x = 64,194,760,127.95/371,389.56
  6. Step 6: Final answer
    x = 172,850.20

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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.