Home / 226,430.04-312,466.89-129,630.66

Finding the Fourth Proportional to 226,430.04, 312,466.89 and 129,630.66

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Solution

The fourth proportional to 226,430.04, 312,466.89 and 129,630.66 is: 178,886.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,430.04 : 312,466.89 = 129,630.66 : x
  2. Step 2: Convert to fraction form
    226,430.04/312,466.89 = 129,630.66/x
  3. Step 3: Cross multiply
    226,430.04x = 312,466.89 × 129,630.66
  4. Step 4: Simplify right side
    226,430.04x = 40,505,289,178.85
  5. Step 5: Solve for x
    x = 40,505,289,178.85/226,430.04
  6. Step 6: Final answer
    x = 178,886.55

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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.