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Finding the Fourth Proportional to 288,238.49, 397,773.06 and 159,185.67

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Solution

The fourth proportional to 288,238.49, 397,773.06 and 159,185.67 is: 219,678.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,238.49 : 397,773.06 = 159,185.67 : x
  2. Step 2: Convert to fraction form
    288,238.49/397,773.06 = 159,185.67/x
  3. Step 3: Cross multiply
    288,238.49x = 397,773.06 × 159,185.67
  4. Step 4: Simplify right side
    288,238.49x = 63,319,770,268.12
  5. Step 5: Solve for x
    x = 63,319,770,268.12/288,238.49
  6. Step 6: Final answer
    x = 219,678.40

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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.