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Finding the Fourth Proportional to 353,553.60, 529,034.40 and 260,241.60

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Solution

The fourth proportional to 353,553.60, 529,034.40 and 260,241.60 is: 389,408.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,553.60 : 529,034.40 = 260,241.60 : x
  2. Step 2: Convert to fraction form
    353,553.60/529,034.40 = 260,241.60/x
  3. Step 3: Cross multiply
    353,553.60x = 529,034.40 × 260,241.60
  4. Step 4: Simplify right side
    353,553.60x = 137,676,758,711.04
  5. Step 5: Solve for x
    x = 137,676,758,711.04/353,553.60
  6. Step 6: Final answer
    x = 389,408.45

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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.