Home / 288,052.20-432,078.30-283,386.60

Finding the Fourth Proportional to 288,052.20, 432,078.30 and 283,386.60

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Solution

The fourth proportional to 288,052.20, 432,078.30 and 283,386.60 is: 425,079.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,052.20 : 432,078.30 = 283,386.60 : x
  2. Step 2: Convert to fraction form
    288,052.20/432,078.30 = 283,386.60/x
  3. Step 3: Cross multiply
    288,052.20x = 432,078.30 × 283,386.60
  4. Step 4: Simplify right side
    288,052.20x = 122,445,200,370.78
  5. Step 5: Solve for x
    x = 122,445,200,370.78/288,052.20
  6. Step 6: Final answer
    x = 425,079.90

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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.