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Finding the Fourth Proportional to 250,049.70, 345,072.69 and 141,159.78

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Solution

The fourth proportional to 250,049.70, 345,072.69 and 141,159.78 is: 194,802.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,049.70 : 345,072.69 = 141,159.78 : x
  2. Step 2: Convert to fraction form
    250,049.70/345,072.69 = 141,159.78/x
  3. Step 3: Cross multiply
    250,049.70x = 345,072.69 × 141,159.78
  4. Step 4: Simplify right side
    250,049.70x = 48,710,385,004.41
  5. Step 5: Solve for x
    x = 48,710,385,004.41/250,049.70
  6. Step 6: Final answer
    x = 194,802.81

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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.