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Finding the Fourth Proportional to 181,458.72, 250,346.70 and 109,812.60

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Solution

The fourth proportional to 181,458.72, 250,346.70 and 109,812.60 is: 151,501.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,458.72 : 250,346.70 = 109,812.60 : x
  2. Step 2: Convert to fraction form
    181,458.72/250,346.70 = 109,812.60/x
  3. Step 3: Cross multiply
    181,458.72x = 250,346.70 × 109,812.60
  4. Step 4: Simplify right side
    181,458.72x = 27,491,222,028.42
  5. Step 5: Solve for x
    x = 27,491,222,028.42/181,458.72
  6. Step 6: Final answer
    x = 151,501.25

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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.