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Finding the Fourth Proportional to 181,488.18, 250,458.03 and 100,919.10

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Solution

The fourth proportional to 181,488.18, 250,458.03 and 100,919.10 is: 139,270.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,488.18 : 250,458.03 = 100,919.10 : x
  2. Step 2: Convert to fraction form
    181,488.18/250,458.03 = 100,919.10/x
  3. Step 3: Cross multiply
    181,488.18x = 250,458.03 × 100,919.10
  4. Step 4: Simplify right side
    181,488.18x = 25,275,998,975.37
  5. Step 5: Solve for x
    x = 25,275,998,975.37/181,488.18
  6. Step 6: Final answer
    x = 139,270.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.