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Finding the Fourth Proportional to 253,880.70, 350,355.36 and 140,710.74

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Solution

The fourth proportional to 253,880.70, 350,355.36 and 140,710.74 is: 194,180.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,880.70 : 350,355.36 = 140,710.74 : x
  2. Step 2: Convert to fraction form
    253,880.70/350,355.36 = 140,710.74/x
  3. Step 3: Cross multiply
    253,880.70x = 350,355.36 × 140,710.74
  4. Step 4: Simplify right side
    253,880.70x = 49,298,761,968.57
  5. Step 5: Solve for x
    x = 49,298,761,968.57/253,880.70
  6. Step 6: Final answer
    x = 194,180.82

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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.