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Finding the Fourth Proportional to 251,146.80, 346,484.52 and 143,659.44

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Solution

The fourth proportional to 251,146.80, 346,484.52 and 143,659.44 is: 198,193.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,146.80 : 346,484.52 = 143,659.44 : x
  2. Step 2: Convert to fraction form
    251,146.80/346,484.52 = 143,659.44/x
  3. Step 3: Cross multiply
    251,146.80x = 346,484.52 × 143,659.44
  4. Step 4: Simplify right side
    251,146.80x = 49,775,772,111.87
  5. Step 5: Solve for x
    x = 49,775,772,111.87/251,146.80
  6. Step 6: Final answer
    x = 198,193.93

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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.