Home / 250,605.72-345,851.64-137,428.50

Finding the Fourth Proportional to 250,605.72, 345,851.64 and 137,428.50

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Solution

The fourth proportional to 250,605.72, 345,851.64 and 137,428.50 is: 189,659.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,605.72 : 345,851.64 = 137,428.50 : x
  2. Step 2: Convert to fraction form
    250,605.72/345,851.64 = 137,428.50/x
  3. Step 3: Cross multiply
    250,605.72x = 345,851.64 × 137,428.50
  4. Step 4: Simplify right side
    250,605.72x = 47,529,872,107.74
  5. Step 5: Solve for x
    x = 47,529,872,107.74/250,605.72
  6. Step 6: Final answer
    x = 189,659.97

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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.