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Finding the Fourth Proportional to 587,289.80, 881,280.30 and 213,350.60

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Solution

The fourth proportional to 587,289.80, 881,280.30 and 213,350.60 is: 320,151.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,289.80 : 881,280.30 = 213,350.60 : x
  2. Step 2: Convert to fraction form
    587,289.80/881,280.30 = 213,350.60/x
  3. Step 3: Cross multiply
    587,289.80x = 881,280.30 × 213,350.60
  4. Step 4: Simplify right side
    587,289.80x = 188,021,680,773.18
  5. Step 5: Solve for x
    x = 188,021,680,773.18/587,289.80
  6. Step 6: Final answer
    x = 320,151.45

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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.