Home / 389,391.12-584,086.68-152,845.20

Finding the Fourth Proportional to 389,391.12, 584,086.68 and 152,845.20

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Solution

The fourth proportional to 389,391.12, 584,086.68 and 152,845.20 is: 229,267.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,391.12 : 584,086.68 = 152,845.20 : x
  2. Step 2: Convert to fraction form
    389,391.12/584,086.68 = 152,845.20/x
  3. Step 3: Cross multiply
    389,391.12x = 584,086.68 × 152,845.20
  4. Step 4: Simplify right side
    389,391.12x = 89,274,845,421.94
  5. Step 5: Solve for x
    x = 89,274,845,421.94/389,391.12
  6. Step 6: Final answer
    x = 229,267.80

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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.