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Finding the Fourth Proportional to 587,340.80, 881,241.60 and 213,401.60

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Solution

The fourth proportional to 587,340.80, 881,241.60 and 213,401.60 is: 320,186.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,340.80 : 881,241.60 = 213,401.60 : x
  2. Step 2: Convert to fraction form
    587,340.80/881,241.60 = 213,401.60/x
  3. Step 3: Cross multiply
    587,340.80x = 881,241.60 × 213,401.60
  4. Step 4: Simplify right side
    587,340.80x = 188,058,367,426.56
  5. Step 5: Solve for x
    x = 188,058,367,426.56/587,340.80
  6. Step 6: Final answer
    x = 320,186.11

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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.