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Finding the Fourth Proportional to 220,230.18, 330,394.50 and 70,479.45

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Solution

The fourth proportional to 220,230.18, 330,394.50 and 70,479.45 is: 105,734.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,230.18 : 330,394.50 = 70,479.45 : x
  2. Step 2: Convert to fraction form
    220,230.18/330,394.50 = 70,479.45/x
  3. Step 3: Cross multiply
    220,230.18x = 330,394.50 × 70,479.45
  4. Step 4: Simplify right side
    220,230.18x = 23,286,022,643.03
  5. Step 5: Solve for x
    x = 23,286,022,643.03/220,230.18
  6. Step 6: Final answer
    x = 105,734.93

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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.