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Finding the Fourth Proportional to 245,199.76, 338,139.97 and 159,127.03

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Solution

The fourth proportional to 245,199.76, 338,139.97 and 159,127.03 is: 219,442.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,199.76 : 338,139.97 = 159,127.03 : x
  2. Step 2: Convert to fraction form
    245,199.76/338,139.97 = 159,127.03/x
  3. Step 3: Cross multiply
    245,199.76x = 338,139.97 × 159,127.03
  4. Step 4: Simplify right side
    245,199.76x = 53,807,209,175.25
  5. Step 5: Solve for x
    x = 53,807,209,175.25/245,199.76
  6. Step 6: Final answer
    x = 219,442.34

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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.