Home / 389,704.60-584,435.40-153,119.80

Finding the Fourth Proportional to 389,704.60, 584,435.40 and 153,119.80

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Solution

The fourth proportional to 389,704.60, 584,435.40 and 153,119.80 is: 229,631.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,704.60 : 584,435.40 = 153,119.80 : x
  2. Step 2: Convert to fraction form
    389,704.60/584,435.40 = 153,119.80/x
  3. Step 3: Cross multiply
    389,704.60x = 584,435.40 × 153,119.80
  4. Step 4: Simplify right side
    389,704.60x = 89,488,631,560.92
  5. Step 5: Solve for x
    x = 89,488,631,560.92/389,704.60
  6. Step 6: Final answer
    x = 229,631.96

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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.