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Finding the Fourth Proportional to 484,000.80, 726,200.64 and 213,986.92

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Solution

The fourth proportional to 484,000.80, 726,200.64 and 213,986.92 is: 321,068.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,000.80 : 726,200.64 = 213,986.92 : x
  2. Step 2: Convert to fraction form
    484,000.80/726,200.64 = 213,986.92/x
  3. Step 3: Cross multiply
    484,000.80x = 726,200.64 × 213,986.92
  4. Step 4: Simplify right side
    484,000.80x = 155,397,438,255.63
  5. Step 5: Solve for x
    x = 155,397,438,255.63/484,000.80
  6. Step 6: Final answer
    x = 321,068.56

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1.5x scale

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.