Home / 287,686.43-431,514.00-88,006.82

Finding the Fourth Proportional to 287,686.43, 431,514.00 and 88,006.82

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Solution

The fourth proportional to 287,686.43, 431,514.00 and 88,006.82 is: 132,005.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,686.43 : 431,514.00 = 88,006.82 : x
  2. Step 2: Convert to fraction form
    287,686.43/431,514.00 = 88,006.82/x
  3. Step 3: Cross multiply
    287,686.43x = 431,514.00 × 88,006.82
  4. Step 4: Simplify right side
    287,686.43x = 37,976,174,656.23
  5. Step 5: Solve for x
    x = 37,976,174,656.23/287,686.43
  6. Step 6: Final answer
    x = 132,005.44

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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.