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Finding the Fourth Proportional to 286,527.87, 395,401.32 and 159,203.79

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Solution

The fourth proportional to 286,527.87, 395,401.32 and 159,203.79 is: 219,697.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,527.87 : 395,401.32 = 159,203.79 : x
  2. Step 2: Convert to fraction form
    286,527.87/395,401.32 = 159,203.79/x
  3. Step 3: Cross multiply
    286,527.87x = 395,401.32 × 159,203.79
  4. Step 4: Simplify right side
    286,527.87x = 62,949,388,715.00
  5. Step 5: Solve for x
    x = 62,949,388,715.00/286,527.87
  6. Step 6: Final answer
    x = 219,697.26

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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.