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Finding the Fourth Proportional to 154,176.80, 231,291.12 and 48,987.68

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Solution

The fourth proportional to 154,176.80, 231,291.12 and 48,987.68 is: 73,489.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,176.80 : 231,291.12 = 48,987.68 : x
  2. Step 2: Convert to fraction form
    154,176.80/231,291.12 = 48,987.68/x
  3. Step 3: Cross multiply
    154,176.80x = 231,291.12 × 48,987.68
  4. Step 4: Simplify right side
    154,176.80x = 11,330,415,373.40
  5. Step 5: Solve for x
    x = 11,330,415,373.40/154,176.80
  6. Step 6: Final answer
    x = 73,489.76

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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.