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Finding the Fourth Proportional to 353,244.89, 487,490.80 and 202,371.05

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Solution

The fourth proportional to 353,244.89, 487,490.80 and 202,371.05 is: 279,279.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,244.89 : 487,490.80 = 202,371.05 : x
  2. Step 2: Convert to fraction form
    353,244.89/487,490.80 = 202,371.05/x
  3. Step 3: Cross multiply
    353,244.89x = 487,490.80 × 202,371.05
  4. Step 4: Simplify right side
    353,244.89x = 98,654,024,555.41
  5. Step 5: Solve for x
    x = 98,654,024,555.41/353,244.89
  6. Step 6: Final answer
    x = 279,279.41

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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.