Home / 251,604.46-347,209.23-138,429.10

Finding the Fourth Proportional to 251,604.46, 347,209.23 and 138,429.10

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Solution

The fourth proportional to 251,604.46, 347,209.23 and 138,429.10 is: 191,029.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,604.46 : 347,209.23 = 138,429.10 : x
  2. Step 2: Convert to fraction form
    251,604.46/347,209.23 = 138,429.10/x
  3. Step 3: Cross multiply
    251,604.46x = 347,209.23 × 138,429.10
  4. Step 4: Simplify right side
    251,604.46x = 48,063,861,220.59
  5. Step 5: Solve for x
    x = 48,063,861,220.59/251,604.46
  6. Step 6: Final answer
    x = 191,029.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.