Home / 212,337.57-318,508.83-84,285.30

Finding the Fourth Proportional to 212,337.57, 318,508.83 and 84,285.30

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Solution

The fourth proportional to 212,337.57, 318,508.83 and 84,285.30 is: 126,428.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,337.57 : 318,508.83 = 84,285.30 : x
  2. Step 2: Convert to fraction form
    212,337.57/318,508.83 = 84,285.30/x
  3. Step 3: Cross multiply
    212,337.57x = 318,508.83 × 84,285.30
  4. Step 4: Simplify right side
    212,337.57x = 26,845,612,289.20
  5. Step 5: Solve for x
    x = 26,845,612,289.20/212,337.57
  6. Step 6: Final answer
    x = 126,428.93

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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.