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Finding the Fourth Proportional to 253,317.66, 380,081.10 and 111,089.30

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Solution

The fourth proportional to 253,317.66, 380,081.10 and 111,089.30 is: 166,679.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,317.66 : 380,081.10 = 111,089.30 : x
  2. Step 2: Convert to fraction form
    253,317.66/380,081.10 = 111,089.30/x
  3. Step 3: Cross multiply
    253,317.66x = 380,081.10 × 111,089.30
  4. Step 4: Simplify right side
    253,317.66x = 42,222,943,342.23
  5. Step 5: Solve for x
    x = 42,222,943,342.23/253,317.66
  6. Step 6: Final answer
    x = 166,679.83

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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.