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Finding the Fourth Proportional to 181,378.98, 272,069.10 and 55,020.32

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Solution

The fourth proportional to 181,378.98, 272,069.10 and 55,020.32 is: 82,530.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,378.98 : 272,069.10 = 55,020.32 : x
  2. Step 2: Convert to fraction form
    181,378.98/272,069.10 = 55,020.32/x
  3. Step 3: Cross multiply
    181,378.98x = 272,069.10 × 55,020.32
  4. Step 4: Simplify right side
    181,378.98x = 14,969,327,583.77
  5. Step 5: Solve for x
    x = 14,969,327,583.77/181,378.98
  6. Step 6: Final answer
    x = 82,530.66

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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.