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Finding the Fourth Proportional to 251,379.92, 346,902.83 and 142,504.80

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Solution

The fourth proportional to 251,379.92, 346,902.83 and 142,504.80 is: 196,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,379.92 : 346,902.83 = 142,504.80 : x
  2. Step 2: Convert to fraction form
    251,379.92/346,902.83 = 142,504.80/x
  3. Step 3: Cross multiply
    251,379.92x = 346,902.83 × 142,504.80
  4. Step 4: Simplify right side
    251,379.92x = 49,435,316,674.07
  5. Step 5: Solve for x
    x = 49,435,316,674.07/251,379.92
  6. Step 6: Final answer
    x = 196,655.79

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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.