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Finding the Fourth Proportional to 235,713.12, 325,241.03 and 154,019.76

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Solution

The fourth proportional to 235,713.12, 325,241.03 and 154,019.76 is: 212,519.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,713.12 : 325,241.03 = 154,019.76 : x
  2. Step 2: Convert to fraction form
    235,713.12/325,241.03 = 154,019.76/x
  3. Step 3: Cross multiply
    235,713.12x = 325,241.03 × 154,019.76
  4. Step 4: Simplify right side
    235,713.12x = 50,093,544,612.65
  5. Step 5: Solve for x
    x = 50,093,544,612.65/235,713.12
  6. Step 6: Final answer
    x = 212,519.12

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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.