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Finding the Fourth Proportional to 223,885.52, 308,436.41 and 155,785.53

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Solution

The fourth proportional to 223,885.52, 308,436.41 and 155,785.53 is: 214,618.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,885.52 : 308,436.41 = 155,785.53 : x
  2. Step 2: Convert to fraction form
    223,885.52/308,436.41 = 155,785.53/x
  3. Step 3: Cross multiply
    223,885.52x = 308,436.41 × 155,785.53
  4. Step 4: Simplify right side
    223,885.52x = 48,049,928,538.00
  5. Step 5: Solve for x
    x = 48,049,928,538.00/223,885.52
  6. Step 6: Final answer
    x = 214,618.30

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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.