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Finding the Fourth Proportional to 247.65, 370.98 and 156.51

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Solution

The fourth proportional to 247.65, 370.98 and 156.51 is: 234.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.65 : 370.98 = 156.51 : x
  2. Step 2: Convert to fraction form
    247.65/370.98 = 156.51/x
  3. Step 3: Cross multiply
    247.65x = 370.98 × 156.51
  4. Step 4: Simplify right side
    247.65x = 58,062.08
  5. Step 5: Solve for x
    x = 58,062.08/247.65
  6. Step 6: Final answer
    x = 234.45

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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.