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Finding the Fourth Proportional to 587,302.80, 881,184.60 and 213,363.60

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Solution

The fourth proportional to 587,302.80, 881,184.60 and 213,363.60 is: 320,129.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,302.80 : 881,184.60 = 213,363.60 : x
  2. Step 2: Convert to fraction form
    587,302.80/881,184.60 = 213,363.60/x
  3. Step 3: Cross multiply
    587,302.80x = 881,184.60 × 213,363.60
  4. Step 4: Simplify right side
    587,302.80x = 188,012,718,520.56
  5. Step 5: Solve for x
    x = 188,012,718,520.56/587,302.80
  6. Step 6: Final answer
    x = 320,129.10

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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.