Home / 318,670.20-477,429.30-185,441.40

Finding the Fourth Proportional to 318,670.20, 477,429.30 and 185,441.40

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Solution

The fourth proportional to 318,670.20, 477,429.30 and 185,441.40 is: 277,826.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,670.20 : 477,429.30 = 185,441.40 : x
  2. Step 2: Convert to fraction form
    318,670.20/477,429.30 = 185,441.40/x
  3. Step 3: Cross multiply
    318,670.20x = 477,429.30 × 185,441.40
  4. Step 4: Simplify right side
    318,670.20x = 88,535,157,793.02
  5. Step 5: Solve for x
    x = 88,535,157,793.02/318,670.20
  6. Step 6: Final answer
    x = 277,826.91

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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.