Home / 285,930.18-428,770.65-96,355.21

Finding the Fourth Proportional to 285,930.18, 428,770.65 and 96,355.21

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Solution

The fourth proportional to 285,930.18, 428,770.65 and 96,355.21 is: 144,490.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,930.18 : 428,770.65 = 96,355.21 : x
  2. Step 2: Convert to fraction form
    285,930.18/428,770.65 = 96,355.21/x
  3. Step 3: Cross multiply
    285,930.18x = 428,770.65 × 96,355.21
  4. Step 4: Simplify right side
    285,930.18x = 41,314,286,022.59
  5. Step 5: Solve for x
    x = 41,314,286,022.59/285,930.18
  6. Step 6: Final answer
    x = 144,490.82

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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.