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Finding the Fourth Proportional to 171,342.80, 256,882.44 and 87,033.68

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Solution

The fourth proportional to 171,342.80, 256,882.44 and 87,033.68 is: 130,483.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,342.80 : 256,882.44 = 87,033.68 : x
  2. Step 2: Convert to fraction form
    171,342.80/256,882.44 = 87,033.68/x
  3. Step 3: Cross multiply
    171,342.80x = 256,882.44 × 87,033.68
  4. Step 4: Simplify right side
    171,342.80x = 22,357,424,080.58
  5. Step 5: Solve for x
    x = 22,357,424,080.58/171,342.80
  6. Step 6: Final answer
    x = 130,483.59

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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.