Home / 325,420.19-488,475.35-288,221.75

Finding the Fourth Proportional to 325,420.19, 488,475.35 and 288,221.75

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Solution

The fourth proportional to 325,420.19, 488,475.35 and 288,221.75 is: 432,638.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,420.19 : 488,475.35 = 288,221.75 : x
  2. Step 2: Convert to fraction form
    325,420.19/488,475.35 = 288,221.75/x
  3. Step 3: Cross multiply
    325,420.19x = 488,475.35 × 288,221.75
  4. Step 4: Simplify right side
    325,420.19x = 140,789,218,767.75
  5. Step 5: Solve for x
    x = 140,789,218,767.75/325,420.19
  6. Step 6: Final answer
    x = 432,638.24

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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.