Home / 389,101.32-536,947.38-219,351.24

Finding the Fourth Proportional to 389,101.32, 536,947.38 and 219,351.24

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Solution

The fourth proportional to 389,101.32, 536,947.38 and 219,351.24 is: 302,697.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,101.32 : 536,947.38 = 219,351.24 : x
  2. Step 2: Convert to fraction form
    389,101.32/536,947.38 = 219,351.24/x
  3. Step 3: Cross multiply
    389,101.32x = 536,947.38 × 219,351.24
  4. Step 4: Simplify right side
    389,101.32x = 117,780,073,617.75
  5. Step 5: Solve for x
    x = 117,780,073,617.75/389,101.32
  6. Step 6: Final answer
    x = 302,697.70

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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.