Home / 287,664.80-431,335.20-110,177.60

Finding the Fourth Proportional to 287,664.80, 431,335.20 and 110,177.60

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Solution

The fourth proportional to 287,664.80, 431,335.20 and 110,177.60 is: 165,204.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,664.80 : 431,335.20 = 110,177.60 : x
  2. Step 2: Convert to fraction form
    287,664.80/431,335.20 = 110,177.60/x
  3. Step 3: Cross multiply
    287,664.80x = 431,335.20 × 110,177.60
  4. Step 4: Simplify right side
    287,664.80x = 47,523,477,131.52
  5. Step 5: Solve for x
    x = 47,523,477,131.52/287,664.80
  6. Step 6: Final answer
    x = 165,204.35

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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.