Home / 352,139.40-526,826.70-318,961.80

Finding the Fourth Proportional to 352,139.40, 526,826.70 and 318,961.80

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Solution

The fourth proportional to 352,139.40, 526,826.70 and 318,961.80 is: 477,190.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,139.40 : 526,826.70 = 318,961.80 : x
  2. Step 2: Convert to fraction form
    352,139.40/526,826.70 = 318,961.80/x
  3. Step 3: Cross multiply
    352,139.40x = 526,826.70 × 318,961.80
  4. Step 4: Simplify right side
    352,139.40x = 168,037,592,520.06
  5. Step 5: Solve for x
    x = 168,037,592,520.06/352,139.40
  6. Step 6: Final answer
    x = 477,190.55

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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.