Home / 282,327.12-423,380.25-102,369.78

Finding the Fourth Proportional to 282,327.12, 423,380.25 and 102,369.78

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Solution

The fourth proportional to 282,327.12, 423,380.25 and 102,369.78 is: 153,514.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,327.12 : 423,380.25 = 102,369.78 : x
  2. Step 2: Convert to fraction form
    282,327.12/423,380.25 = 102,369.78/x
  3. Step 3: Cross multiply
    282,327.12x = 423,380.25 × 102,369.78
  4. Step 4: Simplify right side
    282,327.12x = 43,341,343,048.85
  5. Step 5: Solve for x
    x = 43,341,343,048.85/282,327.12
  6. Step 6: Final answer
    x = 153,514.63

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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.