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Finding the Fourth Proportional to 371,464.54, 557,276.82 and 115,291.78

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Solution

The fourth proportional to 371,464.54, 557,276.82 and 115,291.78 is: 172,962.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,464.54 : 557,276.82 = 115,291.78 : x
  2. Step 2: Convert to fraction form
    371,464.54/557,276.82 = 115,291.78/x
  3. Step 3: Cross multiply
    371,464.54x = 557,276.82 × 115,291.78
  4. Step 4: Simplify right side
    371,464.54x = 64,249,436,530.54
  5. Step 5: Solve for x
    x = 64,249,436,530.54/371,464.54
  6. Step 6: Final answer
    x = 172,962.50

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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.