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Finding the Fourth Proportional to 349,083.60, 523,279.80 and 171,445.20

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Solution

The fourth proportional to 349,083.60, 523,279.80 and 171,445.20 is: 256,998.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,083.60 : 523,279.80 = 171,445.20 : x
  2. Step 2: Convert to fraction form
    349,083.60/523,279.80 = 171,445.20/x
  3. Step 3: Cross multiply
    349,083.60x = 523,279.80 × 171,445.20
  4. Step 4: Simplify right side
    349,083.60x = 89,713,809,966.96
  5. Step 5: Solve for x
    x = 89,713,809,966.96/349,083.60
  6. Step 6: Final answer
    x = 256,998.07

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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.