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Finding the Fourth Proportional to 372,002.70, 557,960.85 and 105,804.30

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Solution

The fourth proportional to 372,002.70, 557,960.85 and 105,804.30 is: 158,694.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,002.70 : 557,960.85 = 105,804.30 : x
  2. Step 2: Convert to fraction form
    372,002.70/557,960.85 = 105,804.30/x
  3. Step 3: Cross multiply
    372,002.70x = 557,960.85 × 105,804.30
  4. Step 4: Simplify right side
    372,002.70x = 59,034,657,161.66
  5. Step 5: Solve for x
    x = 59,034,657,161.66/372,002.70
  6. Step 6: Final answer
    x = 158,694.16

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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.