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Finding the Fourth Proportional to 356,672.43, 492,258.65 and 220,750.16

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Solution

The fourth proportional to 356,672.43, 492,258.65 and 220,750.16 is: 304,666.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,672.43 : 492,258.65 = 220,750.16 : x
  2. Step 2: Convert to fraction form
    356,672.43/492,258.65 = 220,750.16/x
  3. Step 3: Cross multiply
    356,672.43x = 492,258.65 × 220,750.16
  4. Step 4: Simplify right side
    356,672.43x = 108,666,172,183.84
  5. Step 5: Solve for x
    x = 108,666,172,183.84/356,672.43
  6. Step 6: Final answer
    x = 304,666.59

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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.