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Finding the Fourth Proportional to 372,079, 558,118.53 and 109,423

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Solution

The fourth proportional to 372,079, 558,118.53 and 109,423 is: 164,134.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,079 : 558,118.53 = 109,423 : x
  2. Step 2: Convert to fraction form
    372,079/558,118.53 = 109,423/x
  3. Step 3: Cross multiply
    372,079x = 558,118.53 × 109,423
  4. Step 4: Simplify right side
    372,079x = 61,071,003,908.19
  5. Step 5: Solve for x
    x = 61,071,003,908.19/372,079
  6. Step 6: Final answer
    x = 164,134.51

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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.