Home / 389,708.80-584,563.20-152,972.80

Finding the Fourth Proportional to 389,708.80, 584,563.20 and 152,972.80

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Solution

The fourth proportional to 389,708.80, 584,563.20 and 152,972.80 is: 229,459.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,708.80 : 584,563.20 = 152,972.80 : x
  2. Step 2: Convert to fraction form
    389,708.80/584,563.20 = 152,972.80/x
  3. Step 3: Cross multiply
    389,708.80x = 584,563.20 × 152,972.80
  4. Step 4: Simplify right side
    389,708.80x = 89,422,269,480.96
  5. Step 5: Solve for x
    x = 89,422,269,480.96/389,708.80
  6. Step 6: Final answer
    x = 229,459.20

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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.