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Finding the Fourth Proportional to 250,569, 345,785.24 and 137,394.18

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Solution

The fourth proportional to 250,569, 345,785.24 and 137,394.18 is: 189,603.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,569 : 345,785.24 = 137,394.18 : x
  2. Step 2: Convert to fraction form
    250,569/345,785.24 = 137,394.18/x
  3. Step 3: Cross multiply
    250,569x = 345,785.24 × 137,394.18
  4. Step 4: Simplify right side
    250,569x = 47,508,879,849.39
  5. Step 5: Solve for x
    x = 47,508,879,849.39/250,569
  6. Step 6: Final answer
    x = 189,603.98

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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.