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Finding the Fourth Proportional to 371,491.39, 557,120.39 and 158,257.07

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Solution

The fourth proportional to 371,491.39, 557,120.39 and 158,257.07 is: 237,335.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,491.39 : 557,120.39 = 158,257.07 : x
  2. Step 2: Convert to fraction form
    371,491.39/557,120.39 = 158,257.07/x
  3. Step 3: Cross multiply
    371,491.39x = 557,120.39 × 158,257.07
  4. Step 4: Simplify right side
    371,491.39x = 88,168,240,558.66
  5. Step 5: Solve for x
    x = 88,168,240,558.66/371,491.39
  6. Step 6: Final answer
    x = 237,335.89

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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.