Home / 221,471.28-331,973.64-110,430

Finding the Fourth Proportional to 221,471.28, 331,973.64 and 110,430

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Solution

The fourth proportional to 221,471.28, 331,973.64 and 110,430 is: 165,528.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,471.28 : 331,973.64 = 110,430 : x
  2. Step 2: Convert to fraction form
    221,471.28/331,973.64 = 110,430/x
  3. Step 3: Cross multiply
    221,471.28x = 331,973.64 × 110,430
  4. Step 4: Simplify right side
    221,471.28x = 36,659,849,065.20
  5. Step 5: Solve for x
    x = 36,659,849,065.20/221,471.28
  6. Step 6: Final answer
    x = 165,528.68

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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.