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Finding the Fourth Proportional to 285,234.06, 393,620.31 and 164,330.94

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Solution

The fourth proportional to 285,234.06, 393,620.31 and 164,330.94 is: 226,775.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,234.06 : 393,620.31 = 164,330.94 : x
  2. Step 2: Convert to fraction form
    285,234.06/393,620.31 = 164,330.94/x
  3. Step 3: Cross multiply
    285,234.06x = 393,620.31 × 164,330.94
  4. Step 4: Simplify right side
    285,234.06x = 64,683,995,545.39
  5. Step 5: Solve for x
    x = 64,683,995,545.39/285,234.06
  6. Step 6: Final answer
    x = 226,775.15

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1.5x scale

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.