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Finding the Fourth Proportional to 251,187.67, 346,618.87 and 143,733.07

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Solution

The fourth proportional to 251,187.67, 346,618.87 and 143,733.07 is: 198,340.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,187.67 : 346,618.87 = 143,733.07 : x
  2. Step 2: Convert to fraction form
    251,187.67/346,618.87 = 143,733.07/x
  3. Step 3: Cross multiply
    251,187.67x = 346,618.87 × 143,733.07
  4. Step 4: Simplify right side
    251,187.67x = 49,820,594,305.03
  5. Step 5: Solve for x
    x = 49,820,594,305.03/251,187.67
  6. Step 6: Final answer
    x = 198,340.13

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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.