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Finding the Fourth Proportional to 285,353.71, 428,036.02 and 93,228.67

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Solution

The fourth proportional to 285,353.71, 428,036.02 and 93,228.67 is: 139,844.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,353.71 : 428,036.02 = 93,228.67 : x
  2. Step 2: Convert to fraction form
    285,353.71/428,036.02 = 93,228.67/x
  3. Step 3: Cross multiply
    285,353.71x = 428,036.02 × 93,228.67
  4. Step 4: Simplify right side
    285,353.71x = 39,905,227,553.53
  5. Step 5: Solve for x
    x = 39,905,227,553.53/285,353.71
  6. Step 6: Final answer
    x = 139,844.78

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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.