Home / 220,107.49-330,117.94-70,307.40

Finding the Fourth Proportional to 220,107.49, 330,117.94 and 70,307.40

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Solution

The fourth proportional to 220,107.49, 330,117.94 and 70,307.40 is: 105,447.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,107.49 : 330,117.94 = 70,307.40 : x
  2. Step 2: Convert to fraction form
    220,107.49/330,117.94 = 70,307.40/x
  3. Step 3: Cross multiply
    220,107.49x = 330,117.94 × 70,307.40
  4. Step 4: Simplify right side
    220,107.49x = 23,209,735,380.58
  5. Step 5: Solve for x
    x = 23,209,735,380.58/220,107.49
  6. Step 6: Final answer
    x = 105,447.28

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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.