Home / 220,634.91-330,985.31-102,318.21

Finding the Fourth Proportional to 220,634.91, 330,985.31 and 102,318.21

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Solution

The fourth proportional to 220,634.91, 330,985.31 and 102,318.21 is: 153,492.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,634.91 : 330,985.31 = 102,318.21 : x
  2. Step 2: Convert to fraction form
    220,634.91/330,985.31 = 102,318.21/x
  3. Step 3: Cross multiply
    220,634.91x = 330,985.31 × 102,318.21
  4. Step 4: Simplify right side
    220,634.91x = 33,865,823,943.90
  5. Step 5: Solve for x
    x = 33,865,823,943.90/220,634.91
  6. Step 6: Final answer
    x = 153,492.59

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1.5x scale

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.