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Finding the Fourth Proportional to 251,388.92, 346,818.56 and 143,901.51

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Solution

The fourth proportional to 251,388.92, 346,818.56 and 143,901.51 is: 198,527.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,388.92 : 346,818.56 = 143,901.51 : x
  2. Step 2: Convert to fraction form
    251,388.92/346,818.56 = 143,901.51/x
  3. Step 3: Cross multiply
    251,388.92x = 346,818.56 × 143,901.51
  4. Step 4: Simplify right side
    251,388.92x = 49,907,713,760.52
  5. Step 5: Solve for x
    x = 49,907,713,760.52/251,388.92
  6. Step 6: Final answer
    x = 198,527.90

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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.