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Finding the Fourth Proportional to 257,526.66, 355,229.82 and 170,311.62

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Solution

The fourth proportional to 257,526.66, 355,229.82 and 170,311.62 is: 234,926.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,526.66 : 355,229.82 = 170,311.62 : x
  2. Step 2: Convert to fraction form
    257,526.66/355,229.82 = 170,311.62/x
  3. Step 3: Cross multiply
    257,526.66x = 355,229.82 × 170,311.62
  4. Step 4: Simplify right side
    257,526.66x = 60,499,766,116.51
  5. Step 5: Solve for x
    x = 60,499,766,116.51/257,526.66
  6. Step 6: Final answer
    x = 234,926.23

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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.