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Finding the Fourth Proportional to 250,230, 345,317.40 and 137,055.18

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Solution

The fourth proportional to 250,230, 345,317.40 and 137,055.18 is: 189,136.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,230 : 345,317.40 = 137,055.18 : x
  2. Step 2: Convert to fraction form
    250,230/345,317.40 = 137,055.18/x
  3. Step 3: Cross multiply
    250,230x = 345,317.40 × 137,055.18
  4. Step 4: Simplify right side
    250,230x = 47,327,538,414.13
  5. Step 5: Solve for x
    x = 47,327,538,414.13/250,230
  6. Step 6: Final answer
    x = 189,136.15

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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.