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Finding the Fourth Proportional to 245,059.84, 338,255.92 and 143,112.80

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Solution

The fourth proportional to 245,059.84, 338,255.92 and 143,112.80 is: 197,538.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,059.84 : 338,255.92 = 143,112.80 : x
  2. Step 2: Convert to fraction form
    245,059.84/338,255.92 = 143,112.80/x
  3. Step 3: Cross multiply
    245,059.84x = 338,255.92 × 143,112.80
  4. Step 4: Simplify right side
    245,059.84x = 48,408,751,827.78
  5. Step 5: Solve for x
    x = 48,408,751,827.78/245,059.84
  6. Step 6: Final answer
    x = 197,538.49

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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.