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Finding the Fourth Proportional to 219,589.73, 303,031.31 and 118,987.73

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Solution

The fourth proportional to 219,589.73, 303,031.31 and 118,987.73 is: 164,201.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,589.73 : 303,031.31 = 118,987.73 : x
  2. Step 2: Convert to fraction form
    219,589.73/303,031.31 = 118,987.73/x
  3. Step 3: Cross multiply
    219,589.73x = 303,031.31 × 118,987.73
  4. Step 4: Simplify right side
    219,589.73x = 36,057,007,695.83
  5. Step 5: Solve for x
    x = 36,057,007,695.83/219,589.73
  6. Step 6: Final answer
    x = 164,201.70

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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.