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Finding the Fourth Proportional to 207,871.60, 311,346.60 and 124,927.60

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Solution

The fourth proportional to 207,871.60, 311,346.60 and 124,927.60 is: 187,114.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,871.60 : 311,346.60 = 124,927.60 : x
  2. Step 2: Convert to fraction form
    207,871.60/311,346.60 = 124,927.60/x
  3. Step 3: Cross multiply
    207,871.60x = 311,346.60 × 124,927.60
  4. Step 4: Simplify right side
    207,871.60x = 38,895,783,506.16
  5. Step 5: Solve for x
    x = 38,895,783,506.16/207,871.60
  6. Step 6: Final answer
    x = 187,114.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.