Home / 253,200.03-379,800.05-66,209.91

Finding the Fourth Proportional to 253,200.03, 379,800.05 and 66,209.91

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Solution

The fourth proportional to 253,200.03, 379,800.05 and 66,209.91 is: 99,314.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,200.03 : 379,800.05 = 66,209.91 : x
  2. Step 2: Convert to fraction form
    253,200.03/379,800.05 = 66,209.91/x
  3. Step 3: Cross multiply
    253,200.03x = 379,800.05 × 66,209.91
  4. Step 4: Simplify right side
    253,200.03x = 25,146,526,797.45
  5. Step 5: Solve for x
    x = 25,146,526,797.45/253,200.03
  6. Step 6: Final answer
    x = 99,314.87

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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.