Home / 376,505.07-564,764.35-136,789.21

Finding the Fourth Proportional to 376,505.07, 564,764.35 and 136,789.21

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Solution

The fourth proportional to 376,505.07, 564,764.35 and 136,789.21 is: 205,186.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,505.07 : 564,764.35 = 136,789.21 : x
  2. Step 2: Convert to fraction form
    376,505.07/564,764.35 = 136,789.21/x
  3. Step 3: Cross multiply
    376,505.07x = 564,764.35 × 136,789.21
  4. Step 4: Simplify right side
    376,505.07x = 77,253,669,893.13
  5. Step 5: Solve for x
    x = 77,253,669,893.13/376,505.07
  6. Step 6: Final answer
    x = 205,186.27

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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.