Home / 226,421.57-312,465.42-129,625.04

Finding the Fourth Proportional to 226,421.57, 312,465.42 and 129,625.04

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Solution

The fourth proportional to 226,421.57, 312,465.42 and 129,625.04 is: 178,884.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,421.57 : 312,465.42 = 129,625.04 : x
  2. Step 2: Convert to fraction form
    226,421.57/312,465.42 = 129,625.04/x
  3. Step 3: Cross multiply
    226,421.57x = 312,465.42 × 129,625.04
  4. Step 4: Simplify right side
    226,421.57x = 40,503,343,347.28
  5. Step 5: Solve for x
    x = 40,503,343,347.28/226,421.57
  6. Step 6: Final answer
    x = 178,884.65

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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.