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Finding the Fourth Proportional to 211,901.00, 317,726.96 and 85,545.38

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Solution

The fourth proportional to 211,901.00, 317,726.96 and 85,545.38 is: 128,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,901.00 : 317,726.96 = 85,545.38 : x
  2. Step 2: Convert to fraction form
    211,901.00/317,726.96 = 85,545.38/x
  3. Step 3: Cross multiply
    211,901.00x = 317,726.96 × 85,545.38
  4. Step 4: Simplify right side
    211,901.00x = 27,180,073,896.04
  5. Step 5: Solve for x
    x = 27,180,073,896.04/211,901.00
  6. Step 6: Final answer
    x = 128,267.80

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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.