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Finding the Fourth Proportional to 375,450.86, 563,171.15 and 91,143.59

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Solution

The fourth proportional to 375,450.86, 563,171.15 and 91,143.59 is: 136,714.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,450.86 : 563,171.15 = 91,143.59 : x
  2. Step 2: Convert to fraction form
    375,450.86/563,171.15 = 91,143.59/x
  3. Step 3: Cross multiply
    375,450.86x = 563,171.15 × 91,143.59
  4. Step 4: Simplify right side
    375,450.86x = 51,329,437,123.85
  5. Step 5: Solve for x
    x = 51,329,437,123.85/375,450.86
  6. Step 6: Final answer
    x = 136,714.13

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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.