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Finding the Fourth Proportional to 351,980, 485,951.92 and 244,513.76

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Solution

The fourth proportional to 351,980, 485,951.92 and 244,513.76 is: 337,581.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,980 : 485,951.92 = 244,513.76 : x
  2. Step 2: Convert to fraction form
    351,980/485,951.92 = 244,513.76/x
  3. Step 3: Cross multiply
    351,980x = 485,951.92 × 244,513.76
  4. Step 4: Simplify right side
    351,980x = 118,821,931,138.42
  5. Step 5: Solve for x
    x = 118,821,931,138.42/351,980
  6. Step 6: Final answer
    x = 337,581.49

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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.