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Finding the Fourth Proportional to 171,156.80, 256,521.36 and 118,143.92

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Solution

The fourth proportional to 171,156.80, 256,521.36 and 118,143.92 is: 177,068.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,156.80 : 256,521.36 = 118,143.92 : x
  2. Step 2: Convert to fraction form
    171,156.80/256,521.36 = 118,143.92/x
  3. Step 3: Cross multiply
    171,156.80x = 256,521.36 × 118,143.92
  4. Step 4: Simplify right side
    171,156.80x = 30,306,439,034.13
  5. Step 5: Solve for x
    x = 30,306,439,034.13/171,156.80
  6. Step 6: Final answer
    x = 177,068.27

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1.5x scale

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.