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Finding the Fourth Proportional to 375,717.61, 563,576 and 91,406.39

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Solution

The fourth proportional to 375,717.61, 563,576 and 91,406.39 is: 137,109.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,717.61 : 563,576 = 91,406.39 : x
  2. Step 2: Convert to fraction form
    375,717.61/563,576 = 91,406.39/x
  3. Step 3: Cross multiply
    375,717.61x = 563,576 × 91,406.39
  4. Step 4: Simplify right side
    375,717.61x = 51,514,447,650.64
  5. Step 5: Solve for x
    x = 51,514,447,650.64/375,717.61
  6. Step 6: Final answer
    x = 137,109.49

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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.