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Finding the Fourth Proportional to 250,040.77, 345,052.78 and 142,612.61

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Solution

The fourth proportional to 250,040.77, 345,052.78 and 142,612.61 is: 196,803.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,040.77 : 345,052.78 = 142,612.61 : x
  2. Step 2: Convert to fraction form
    250,040.77/345,052.78 = 142,612.61/x
  3. Step 3: Cross multiply
    250,040.77x = 345,052.78 × 142,612.61
  4. Step 4: Simplify right side
    250,040.77x = 49,208,875,461.76
  5. Step 5: Solve for x
    x = 49,208,875,461.76/250,040.77
  6. Step 6: Final answer
    x = 196,803.41

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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.