Home / 226,255.61-312,198.90-129,444.09

Finding the Fourth Proportional to 226,255.61, 312,198.90 and 129,444.09

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Solution

The fourth proportional to 226,255.61, 312,198.90 and 129,444.09 is: 178,613.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,255.61 : 312,198.90 = 129,444.09 : x
  2. Step 2: Convert to fraction form
    226,255.61/312,198.90 = 129,444.09/x
  3. Step 3: Cross multiply
    226,255.61x = 312,198.90 × 129,444.09
  4. Step 4: Simplify right side
    226,255.61x = 40,412,302,509.50
  5. Step 5: Solve for x
    x = 40,412,302,509.50/226,255.61
  6. Step 6: Final answer
    x = 178,613.49

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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.