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Finding the Fourth Proportional to 372,080, 558,120.03 and 109,424

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Solution

The fourth proportional to 372,080, 558,120.03 and 109,424 is: 164,136.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,080 : 558,120.03 = 109,424 : x
  2. Step 2: Convert to fraction form
    372,080/558,120.03 = 109,424/x
  3. Step 3: Cross multiply
    372,080x = 558,120.03 × 109,424
  4. Step 4: Simplify right side
    372,080x = 61,071,726,162.72
  5. Step 5: Solve for x
    x = 61,071,726,162.72/372,080
  6. Step 6: Final answer
    x = 164,136.01

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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.