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Finding the Fourth Proportional to 252,763.52, 378,875.84 and 190,240.64

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Solution

The fourth proportional to 252,763.52, 378,875.84 and 190,240.64 is: 285,158.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,763.52 : 378,875.84 = 190,240.64 : x
  2. Step 2: Convert to fraction form
    252,763.52/378,875.84 = 190,240.64/x
  3. Step 3: Cross multiply
    252,763.52x = 378,875.84 × 190,240.64
  4. Step 4: Simplify right side
    252,763.52x = 72,077,582,282.14
  5. Step 5: Solve for x
    x = 72,077,582,282.14/252,763.52
  6. Step 6: Final answer
    x = 285,158.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.