Home / 392,241.09-588,360.67-221,385.35

Finding the Fourth Proportional to 392,241.09, 588,360.67 and 221,385.35

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Solution

The fourth proportional to 392,241.09, 588,360.67 and 221,385.35 is: 332,077.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,241.09 : 588,360.67 = 221,385.35 : x
  2. Step 2: Convert to fraction form
    392,241.09/588,360.67 = 221,385.35/x
  3. Step 3: Cross multiply
    392,241.09x = 588,360.67 × 221,385.35
  4. Step 4: Simplify right side
    392,241.09x = 130,254,434,878.55
  5. Step 5: Solve for x
    x = 130,254,434,878.55/392,241.09
  6. Step 6: Final answer
    x = 332,077.48

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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.