Home / 273,000.20-409,500.30-140,139.95

Finding the Fourth Proportional to 273,000.20, 409,500.30 and 140,139.95

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Solution

The fourth proportional to 273,000.20, 409,500.30 and 140,139.95 is: 210,209.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,000.20 : 409,500.30 = 140,139.95 : x
  2. Step 2: Convert to fraction form
    273,000.20/409,500.30 = 140,139.95/x
  3. Step 3: Cross multiply
    273,000.20x = 409,500.30 × 140,139.95
  4. Step 4: Simplify right side
    273,000.20x = 57,387,351,566.99
  5. Step 5: Solve for x
    x = 57,387,351,566.99/273,000.20
  6. Step 6: Final answer
    x = 210,209.93

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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.