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Finding the Fourth Proportional to 322,967.20, 445,818.72 and 242,627.76

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Solution

The fourth proportional to 322,967.20, 445,818.72 and 242,627.76 is: 334,919.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,967.20 : 445,818.72 = 242,627.76 : x
  2. Step 2: Convert to fraction form
    322,967.20/445,818.72 = 242,627.76/x
  3. Step 3: Cross multiply
    322,967.20x = 445,818.72 × 242,627.76
  4. Step 4: Simplify right side
    322,967.20x = 108,167,997,399.67
  5. Step 5: Solve for x
    x = 108,167,997,399.67/322,967.20
  6. Step 6: Final answer
    x = 334,919.45

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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.