Home / 288,002.40-432,003.60-88,321.20

Finding the Fourth Proportional to 288,002.40, 432,003.60 and 88,321.20

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Solution

The fourth proportional to 288,002.40, 432,003.60 and 88,321.20 is: 132,481.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,002.40 : 432,003.60 = 88,321.20 : x
  2. Step 2: Convert to fraction form
    288,002.40/432,003.60 = 88,321.20/x
  3. Step 3: Cross multiply
    288,002.40x = 432,003.60 × 88,321.20
  4. Step 4: Simplify right side
    288,002.40x = 38,155,076,356.32
  5. Step 5: Solve for x
    x = 38,155,076,356.32/288,002.40
  6. Step 6: Final answer
    x = 132,481.80

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1.5x scale

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.