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Finding the Fourth Proportional to 295,747.20, 442,964.70 and 256,381.20

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Solution

The fourth proportional to 295,747.20, 442,964.70 and 256,381.20 is: 384,003.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,747.20 : 442,964.70 = 256,381.20 : x
  2. Step 2: Convert to fraction form
    295,747.20/442,964.70 = 256,381.20/x
  3. Step 3: Cross multiply
    295,747.20x = 442,964.70 × 256,381.20
  4. Step 4: Simplify right side
    295,747.20x = 113,567,821,343.64
  5. Step 5: Solve for x
    x = 113,567,821,343.64/295,747.20
  6. Step 6: Final answer
    x = 384,003.03

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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.