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Finding the Fourth Proportional to 230,077.80, 345,116.70 and 171,028.80

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Solution

The fourth proportional to 230,077.80, 345,116.70 and 171,028.80 is: 256,543.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,077.80 : 345,116.70 = 171,028.80 : x
  2. Step 2: Convert to fraction form
    230,077.80/345,116.70 = 171,028.80/x
  3. Step 3: Cross multiply
    230,077.80x = 345,116.70 × 171,028.80
  4. Step 4: Simplify right side
    230,077.80x = 59,024,895,060.96
  5. Step 5: Solve for x
    x = 59,024,895,060.96/230,077.80
  6. Step 6: Final answer
    x = 256,543.20

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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.