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Finding the Fourth Proportional to 218,113.64, 327,036.52 and 84,838.56

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Solution

The fourth proportional to 218,113.64, 327,036.52 and 84,838.56 is: 127,205.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,113.64 : 327,036.52 = 84,838.56 : x
  2. Step 2: Convert to fraction form
    218,113.64/327,036.52 = 84,838.56/x
  3. Step 3: Cross multiply
    218,113.64x = 327,036.52 × 84,838.56
  4. Step 4: Simplify right side
    218,113.64x = 27,745,307,424.21
  5. Step 5: Solve for x
    x = 27,745,307,424.21/218,113.64
  6. Step 6: Final answer
    x = 127,205.74

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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.