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Finding the Fourth Proportional to 251,253.75, 346,731.51 and 136,533.30

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Solution

The fourth proportional to 251,253.75, 346,731.51 and 136,533.30 is: 188,416.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,253.75 : 346,731.51 = 136,533.30 : x
  2. Step 2: Convert to fraction form
    251,253.75/346,731.51 = 136,533.30/x
  3. Step 3: Cross multiply
    251,253.75x = 346,731.51 × 136,533.30
  4. Step 4: Simplify right side
    251,253.75x = 47,340,397,274.28
  5. Step 5: Solve for x
    x = 47,340,397,274.28/251,253.75
  6. Step 6: Final answer
    x = 188,416.68

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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.