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Finding the Fourth Proportional to 372,772.16, 558,317.04 and 172,672.16

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Solution

The fourth proportional to 372,772.16, 558,317.04 and 172,672.16 is: 258,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,772.16 : 558,317.04 = 172,672.16 : x
  2. Step 2: Convert to fraction form
    372,772.16/558,317.04 = 172,672.16/x
  3. Step 3: Cross multiply
    372,772.16x = 558,317.04 × 172,672.16
  4. Step 4: Simplify right side
    372,772.16x = 96,405,809,261.61
  5. Step 5: Solve for x
    x = 96,405,809,261.61/372,772.16
  6. Step 6: Final answer
    x = 258,618.59

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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.