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Finding the Fourth Proportional to 287,270.73, 430,502.70 and 227,034.42

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Solution

The fourth proportional to 287,270.73, 430,502.70 and 227,034.42 is: 340,232.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,270.73 : 430,502.70 = 227,034.42 : x
  2. Step 2: Convert to fraction form
    287,270.73/430,502.70 = 227,034.42/x
  3. Step 3: Cross multiply
    287,270.73x = 430,502.70 × 227,034.42
  4. Step 4: Simplify right side
    287,270.73x = 97,738,930,802.93
  5. Step 5: Solve for x
    x = 97,738,930,802.93/287,270.73
  6. Step 6: Final answer
    x = 340,232.82

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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.