Home / 273,260.10-409,890.15-86,247.30

Finding the Fourth Proportional to 273,260.10, 409,890.15 and 86,247.30

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Solution

The fourth proportional to 273,260.10, 409,890.15 and 86,247.30 is: 129,370.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,260.10 : 409,890.15 = 86,247.30 : x
  2. Step 2: Convert to fraction form
    273,260.10/409,890.15 = 86,247.30/x
  3. Step 3: Cross multiply
    273,260.10x = 409,890.15 × 86,247.30
  4. Step 4: Simplify right side
    273,260.10x = 35,351,918,734.10
  5. Step 5: Solve for x
    x = 35,351,918,734.10/273,260.10
  6. Step 6: Final answer
    x = 129,370.95

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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.