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Finding the Fourth Proportional to 283,309.08, 425,009.78 and 83,649.65

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Solution

The fourth proportional to 283,309.08, 425,009.78 and 83,649.65 is: 125,488.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,309.08 : 425,009.78 = 83,649.65 : x
  2. Step 2: Convert to fraction form
    283,309.08/425,009.78 = 83,649.65/x
  3. Step 3: Cross multiply
    283,309.08x = 425,009.78 × 83,649.65
  4. Step 4: Simplify right side
    283,309.08x = 35,551,916,800.28
  5. Step 5: Solve for x
    x = 35,551,916,800.28/283,309.08
  6. Step 6: Final answer
    x = 125,488.10

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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.