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Finding the Fourth Proportional to 251,429.05, 346,968.12 and 136,709.97

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Solution

The fourth proportional to 251,429.05, 346,968.12 and 136,709.97 is: 188,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,429.05 : 346,968.12 = 136,709.97 : x
  2. Step 2: Convert to fraction form
    251,429.05/346,968.12 = 136,709.97/x
  3. Step 3: Cross multiply
    251,429.05x = 346,968.12 × 136,709.97
  4. Step 4: Simplify right side
    251,429.05x = 47,434,001,276.16
  5. Step 5: Solve for x
    x = 47,434,001,276.16/251,429.05
  6. Step 6: Final answer
    x = 188,657.60

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1.5x scale

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.