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Finding the Fourth Proportional to 181,475, 250,423.63 and 100,899.56

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Solution

The fourth proportional to 181,475, 250,423.63 and 100,899.56 is: 139,234.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    181,475 : 250,423.63 = 100,899.56 : x
  2. Step 2: Convert to fraction form
    181,475/250,423.63 = 100,899.56/x
  3. Step 3: Cross multiply
    181,475x = 250,423.63 × 100,899.56
  4. Step 4: Simplify right side
    181,475x = 25,267,634,080.60
  5. Step 5: Solve for x
    x = 25,267,634,080.60/181,475
  6. Step 6: Final answer
    x = 139,234.79

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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.