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Finding the Fourth Proportional to 250,245.39, 375,367.98 and 100,485.63

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Solution

The fourth proportional to 250,245.39, 375,367.98 and 100,485.63 is: 150,728.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,245.39 : 375,367.98 = 100,485.63 : x
  2. Step 2: Convert to fraction form
    250,245.39/375,367.98 = 100,485.63/x
  3. Step 3: Cross multiply
    250,245.39x = 375,367.98 × 100,485.63
  4. Step 4: Simplify right side
    250,245.39x = 37,719,087,952.13
  5. Step 5: Solve for x
    x = 37,719,087,952.13/250,245.39
  6. Step 6: Final answer
    x = 150,728.40

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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.