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Finding the Fourth Proportional to 220,308.91, 330,457.88 and 70,548.62

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Solution

The fourth proportional to 220,308.91, 330,457.88 and 70,548.62 is: 105,821.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,308.91 : 330,457.88 = 70,548.62 : x
  2. Step 2: Convert to fraction form
    220,308.91/330,457.88 = 70,548.62/x
  3. Step 3: Cross multiply
    220,308.91x = 330,457.88 × 70,548.62
  4. Step 4: Simplify right side
    220,308.91x = 23,313,345,926.21
  5. Step 5: Solve for x
    x = 23,313,345,926.21/220,308.91
  6. Step 6: Final answer
    x = 105,821.17

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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.