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Finding the Fourth Proportional to 250,037.78, 345,048.59 and 142,609.61

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Solution

The fourth proportional to 250,037.78, 345,048.59 and 142,609.61 is: 196,799.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,037.78 : 345,048.59 = 142,609.61 : x
  2. Step 2: Convert to fraction form
    250,037.78/345,048.59 = 142,609.61/x
  3. Step 3: Cross multiply
    250,037.78x = 345,048.59 × 142,609.61
  4. Step 4: Simplify right side
    250,037.78x = 49,207,243,125.71
  5. Step 5: Solve for x
    x = 49,207,243,125.71/250,037.78
  6. Step 6: Final answer
    x = 196,799.23

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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.