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Finding the Fourth Proportional to 203,510.52, 304,928.82 and 70,316.76

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Solution

The fourth proportional to 203,510.52, 304,928.82 and 70,316.76 is: 105,358.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,510.52 : 304,928.82 = 70,316.76 : x
  2. Step 2: Convert to fraction form
    203,510.52/304,928.82 = 70,316.76/x
  3. Step 3: Cross multiply
    203,510.52x = 304,928.82 × 70,316.76
  4. Step 4: Simplify right side
    203,510.52x = 21,441,605,304.17
  5. Step 5: Solve for x
    x = 21,441,605,304.17/203,510.52
  6. Step 6: Final answer
    x = 105,358.71

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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.