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Finding the Fourth Proportional to 251,165.80, 346,606.50 and 136,442.92

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Solution

The fourth proportional to 251,165.80, 346,606.50 and 136,442.92 is: 188,289.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,165.80 : 346,606.50 = 136,442.92 : x
  2. Step 2: Convert to fraction form
    251,165.80/346,606.50 = 136,442.92/x
  3. Step 3: Cross multiply
    251,165.80x = 346,606.50 × 136,442.92
  4. Step 4: Simplify right side
    251,165.80x = 47,292,002,950.98
  5. Step 5: Solve for x
    x = 47,292,002,950.98/251,165.80
  6. Step 6: Final answer
    x = 188,289.98

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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.