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Finding the Fourth Proportional to 243,073, 335,440.81 and 134,177.40

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Solution

The fourth proportional to 243,073, 335,440.81 and 134,177.40 is: 185,164.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,073 : 335,440.81 = 134,177.40 : x
  2. Step 2: Convert to fraction form
    243,073/335,440.81 = 134,177.40/x
  3. Step 3: Cross multiply
    243,073x = 335,440.81 × 134,177.40
  4. Step 4: Simplify right side
    243,073x = 45,008,575,739.69
  5. Step 5: Solve for x
    x = 45,008,575,739.69/243,073
  6. Step 6: Final answer
    x = 185,164.85

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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.