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Finding the Fourth Proportional to 331,207.65, 456,913.71 and 195,148.71

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Solution

The fourth proportional to 331,207.65, 456,913.71 and 195,148.71 is: 269,215.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,207.65 : 456,913.71 = 195,148.71 : x
  2. Step 2: Convert to fraction form
    331,207.65/456,913.71 = 195,148.71/x
  3. Step 3: Cross multiply
    331,207.65x = 456,913.71 × 195,148.71
  4. Step 4: Simplify right side
    331,207.65x = 89,166,121,087.81
  5. Step 5: Solve for x
    x = 89,166,121,087.81/331,207.65
  6. Step 6: Final answer
    x = 269,215.16

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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.