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Finding the Fourth Proportional to 339,472.57, 468,087.78 and 216,803.74

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Solution

The fourth proportional to 339,472.57, 468,087.78 and 216,803.74 is: 298,943.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,472.57 : 468,087.78 = 216,803.74 : x
  2. Step 2: Convert to fraction form
    339,472.57/468,087.78 = 216,803.74/x
  3. Step 3: Cross multiply
    339,472.57x = 468,087.78 × 216,803.74
  4. Step 4: Simplify right side
    339,472.57x = 101,483,181,352.30
  5. Step 5: Solve for x
    x = 101,483,181,352.30/339,472.57
  6. Step 6: Final answer
    x = 298,943.69

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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.