Home / 287,858.10-431,882.69-88,180.45

Finding the Fourth Proportional to 287,858.10, 431,882.69 and 88,180.45

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Solution

The fourth proportional to 287,858.10, 431,882.69 and 88,180.45 is: 132,299.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,858.10 : 431,882.69 = 88,180.45 : x
  2. Step 2: Convert to fraction form
    287,858.10/431,882.69 = 88,180.45/x
  3. Step 3: Cross multiply
    287,858.10x = 431,882.69 × 88,180.45
  4. Step 4: Simplify right side
    287,858.10x = 38,083,608,430.80
  5. Step 5: Solve for x
    x = 38,083,608,430.80/287,858.10
  6. Step 6: Final answer
    x = 132,299.94

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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.