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Finding the Fourth Proportional to 250,830, 346,145.94 and 137,652.48

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Solution

The fourth proportional to 250,830, 346,145.94 and 137,652.48 is: 189,960.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,830 : 346,145.94 = 137,652.48 : x
  2. Step 2: Convert to fraction form
    250,830/346,145.94 = 137,652.48/x
  3. Step 3: Cross multiply
    250,830x = 346,145.94 × 137,652.48
  4. Step 4: Simplify right side
    250,830x = 47,647,847,082.93
  5. Step 5: Solve for x
    x = 47,647,847,082.93/250,830
  6. Step 6: Final answer
    x = 189,960.72

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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.