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Finding the Fourth Proportional to 666,307.24, 999,237.20 and 216,922.48

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Solution

The fourth proportional to 666,307.24, 999,237.20 and 216,922.48 is: 325,310.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,307.24 : 999,237.20 = 216,922.48 : x
  2. Step 2: Convert to fraction form
    666,307.24/999,237.20 = 216,922.48/x
  3. Step 3: Cross multiply
    666,307.24x = 999,237.20 × 216,922.48
  4. Step 4: Simplify right side
    666,307.24x = 216,757,007,949.55
  5. Step 5: Solve for x
    x = 216,757,007,949.55/666,307.24
  6. Step 6: Final answer
    x = 325,310.90

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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.