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Finding the Fourth Proportional to 259,362.06, 388,932.90 and 101,565.42

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Solution

The fourth proportional to 259,362.06, 388,932.90 and 101,565.42 is: 152,304.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,362.06 : 388,932.90 = 101,565.42 : x
  2. Step 2: Convert to fraction form
    259,362.06/388,932.90 = 101,565.42/x
  3. Step 3: Cross multiply
    259,362.06x = 388,932.90 × 101,565.42
  4. Step 4: Simplify right side
    259,362.06x = 39,502,133,340.32
  5. Step 5: Solve for x
    x = 39,502,133,340.32/259,362.06
  6. Step 6: Final answer
    x = 152,304.98

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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.