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Finding the Fourth Proportional to 245,805.24, 339,256.08 and 143,824.80

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Solution

The fourth proportional to 245,805.24, 339,256.08 and 143,824.80 is: 198,504.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,805.24 : 339,256.08 = 143,824.80 : x
  2. Step 2: Convert to fraction form
    245,805.24/339,256.08 = 143,824.80/x
  3. Step 3: Cross multiply
    245,805.24x = 339,256.08 × 143,824.80
  4. Step 4: Simplify right side
    245,805.24x = 48,793,437,854.78
  5. Step 5: Solve for x
    x = 48,793,437,854.78/245,805.24
  6. Step 6: Final answer
    x = 198,504.47

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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.