Home / 287,738.20-431,731.68-154,462.82

Finding the Fourth Proportional to 287,738.20, 431,731.68 and 154,462.82

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Solution

The fourth proportional to 287,738.20, 431,731.68 and 154,462.82 is: 231,761.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,738.20 : 431,731.68 = 154,462.82 : x
  2. Step 2: Convert to fraction form
    287,738.20/431,731.68 = 154,462.82/x
  3. Step 3: Cross multiply
    287,738.20x = 431,731.68 × 154,462.82
  4. Step 4: Simplify right side
    287,738.20x = 66,686,492,776.14
  5. Step 5: Solve for x
    x = 66,686,492,776.14/287,738.20
  6. Step 6: Final answer
    x = 231,761.00

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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.