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Finding the Fourth Proportional to 245,001.20, 367,512.60 and 138,383.60

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Solution

The fourth proportional to 245,001.20, 367,512.60 and 138,383.60 is: 207,581.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,001.20 : 367,512.60 = 138,383.60 : x
  2. Step 2: Convert to fraction form
    245,001.20/367,512.60 = 138,383.60/x
  3. Step 3: Cross multiply
    245,001.20x = 367,512.60 × 138,383.60
  4. Step 4: Simplify right side
    245,001.20x = 50,857,716,633.36
  5. Step 5: Solve for x
    x = 50,857,716,633.36/245,001.20
  6. Step 6: Final answer
    x = 207,581.50

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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.