Home / 287,864.48-431,825.52-88,182.56

Finding the Fourth Proportional to 287,864.48, 431,825.52 and 88,182.56

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Solution

The fourth proportional to 287,864.48, 431,825.52 and 88,182.56 is: 132,282.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,864.48 : 431,825.52 = 88,182.56 : x
  2. Step 2: Convert to fraction form
    287,864.48/431,825.52 = 88,182.56/x
  3. Step 3: Cross multiply
    287,864.48x = 431,825.52 × 88,182.56
  4. Step 4: Simplify right side
    287,864.48x = 38,079,479,826.93
  5. Step 5: Solve for x
    x = 38,079,479,826.93/287,864.48
  6. Step 6: Final answer
    x = 132,282.66

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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.