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Finding the Fourth Proportional to 203,287.88, 304,678.79 and 131,050.31

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Solution

The fourth proportional to 203,287.88, 304,678.79 and 131,050.31 is: 196,412.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,287.88 : 304,678.79 = 131,050.31 : x
  2. Step 2: Convert to fraction form
    203,287.88/304,678.79 = 131,050.31/x
  3. Step 3: Cross multiply
    203,287.88x = 304,678.79 × 131,050.31
  4. Step 4: Simplify right side
    203,287.88x = 39,928,248,684.16
  5. Step 5: Solve for x
    x = 39,928,248,684.16/203,287.88
  6. Step 6: Final answer
    x = 196,412.34

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1.5x scale

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.