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Finding the Fourth Proportional to 250,403.76, 345,590.28 and 142,949.52

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Solution

The fourth proportional to 250,403.76, 345,590.28 and 142,949.52 is: 197,289.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,403.76 : 345,590.28 = 142,949.52 : x
  2. Step 2: Convert to fraction form
    250,403.76/345,590.28 = 142,949.52/x
  3. Step 3: Cross multiply
    250,403.76x = 345,590.28 × 142,949.52
  4. Step 4: Simplify right side
    250,403.76x = 49,401,964,642.67
  5. Step 5: Solve for x
    x = 49,401,964,642.67/250,403.76
  6. Step 6: Final answer
    x = 197,289.23

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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.