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Finding the Fourth Proportional to 220,547.20, 330,820.80 and 201,884.80

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Solution

The fourth proportional to 220,547.20, 330,820.80 and 201,884.80 is: 302,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,547.20 : 330,820.80 = 201,884.80 : x
  2. Step 2: Convert to fraction form
    220,547.20/330,820.80 = 201,884.80/x
  3. Step 3: Cross multiply
    220,547.20x = 330,820.80 × 201,884.80
  4. Step 4: Simplify right side
    220,547.20x = 66,787,691,043.84
  5. Step 5: Solve for x
    x = 66,787,691,043.84/220,547.20
  6. Step 6: Final answer
    x = 302,827.20

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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.