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Finding the Fourth Proportional to 360,066, 496,891.08 and 209,172.72

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Solution

The fourth proportional to 360,066, 496,891.08 and 209,172.72 is: 288,658.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,066 : 496,891.08 = 209,172.72 : x
  2. Step 2: Convert to fraction form
    360,066/496,891.08 = 209,172.72/x
  3. Step 3: Cross multiply
    360,066x = 496,891.08 × 209,172.72
  4. Step 4: Simplify right side
    360,066x = 103,936,058,747.34
  5. Step 5: Solve for x
    x = 103,936,058,747.34/360,066
  6. Step 6: Final answer
    x = 288,658.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.