Home / 287,505.16-396,761.46-165,017.80

Finding the Fourth Proportional to 287,505.16, 396,761.46 and 165,017.80

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Solution

The fourth proportional to 287,505.16, 396,761.46 and 165,017.80 is: 227,727.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,505.16 : 396,761.46 = 165,017.80 : x
  2. Step 2: Convert to fraction form
    287,505.16/396,761.46 = 165,017.80/x
  3. Step 3: Cross multiply
    287,505.16x = 396,761.46 × 165,017.80
  4. Step 4: Simplify right side
    287,505.16x = 65,472,703,253.99
  5. Step 5: Solve for x
    x = 65,472,703,253.99/287,505.16
  6. Step 6: Final answer
    x = 227,727.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.