Home / 288,560.15-432,847.65-136,721.60

Finding the Fourth Proportional to 288,560.15, 432,847.65 and 136,721.60

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Solution

The fourth proportional to 288,560.15, 432,847.65 and 136,721.60 is: 205,085.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,560.15 : 432,847.65 = 136,721.60 : x
  2. Step 2: Convert to fraction form
    288,560.15/432,847.65 = 136,721.60/x
  3. Step 3: Cross multiply
    288,560.15x = 432,847.65 × 136,721.60
  4. Step 4: Simplify right side
    288,560.15x = 59,179,623,264.24
  5. Step 5: Solve for x
    x = 59,179,623,264.24/288,560.15
  6. Step 6: Final answer
    x = 205,085.92

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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.