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Finding the Fourth Proportional to 203,275.65, 304,961.93 and 70,157.07

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Solution

The fourth proportional to 203,275.65, 304,961.93 and 70,157.07 is: 105,252.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,275.65 : 304,961.93 = 70,157.07 : x
  2. Step 2: Convert to fraction form
    203,275.65/304,961.93 = 70,157.07/x
  3. Step 3: Cross multiply
    203,275.65x = 304,961.93 × 70,157.07
  4. Step 4: Simplify right side
    203,275.65x = 21,395,235,119.56
  5. Step 5: Solve for x
    x = 21,395,235,119.56/203,275.65
  6. Step 6: Final answer
    x = 105,252.33

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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.