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Finding the Fourth Proportional to 154,430.60, 231,645.90 and 123,326.60

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Solution

The fourth proportional to 154,430.60, 231,645.90 and 123,326.60 is: 184,989.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,430.60 : 231,645.90 = 123,326.60 : x
  2. Step 2: Convert to fraction form
    154,430.60/231,645.90 = 123,326.60/x
  3. Step 3: Cross multiply
    154,430.60x = 231,645.90 × 123,326.60
  4. Step 4: Simplify right side
    154,430.60x = 28,568,101,250.94
  5. Step 5: Solve for x
    x = 28,568,101,250.94/154,430.60
  6. Step 6: Final answer
    x = 184,989.90

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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.