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Finding the Fourth Proportional to 251,483.67, 346,949.01 and 143,995.86

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Solution

The fourth proportional to 251,483.67, 346,949.01 and 143,995.86 is: 198,657.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,483.67 : 346,949.01 = 143,995.86 : x
  2. Step 2: Convert to fraction form
    251,483.67/346,949.01 = 143,995.86/x
  3. Step 3: Cross multiply
    251,483.67x = 346,949.01 × 143,995.86
  4. Step 4: Simplify right side
    251,483.67x = 49,959,221,071.10
  5. Step 5: Solve for x
    x = 49,959,221,071.10/251,483.67
  6. Step 6: Final answer
    x = 198,657.91

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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.