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Finding the Fourth Proportional to 249,920, 344,930.56 and 143,997.44

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Solution

The fourth proportional to 249,920, 344,930.56 and 143,997.44 is: 198,740.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,920 : 344,930.56 = 143,997.44 : x
  2. Step 2: Convert to fraction form
    249,920/344,930.56 = 143,997.44/x
  3. Step 3: Cross multiply
    249,920x = 344,930.56 × 143,997.44
  4. Step 4: Simplify right side
    249,920x = 49,669,117,617.77
  5. Step 5: Solve for x
    x = 49,669,117,617.77/249,920
  6. Step 6: Final answer
    x = 198,740.07

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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.