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Finding the Fourth Proportional to 251,360.78, 346,883.76 and 136,645.94

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Solution

The fourth proportional to 251,360.78, 346,883.76 and 136,645.94 is: 188,574.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,360.78 : 346,883.76 = 136,645.94 : x
  2. Step 2: Convert to fraction form
    251,360.78/346,883.76 = 136,645.94/x
  3. Step 3: Cross multiply
    251,360.78x = 346,883.76 × 136,645.94
  4. Step 4: Simplify right side
    251,360.78x = 47,400,257,455.93
  5. Step 5: Solve for x
    x = 47,400,257,455.93/251,360.78
  6. Step 6: Final answer
    x = 188,574.60

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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.