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Finding the Fourth Proportional to 538,915.80, 808,665.30 and 223,404.60

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Solution

The fourth proportional to 538,915.80, 808,665.30 and 223,404.60 is: 335,227.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,915.80 : 808,665.30 = 223,404.60 : x
  2. Step 2: Convert to fraction form
    538,915.80/808,665.30 = 223,404.60/x
  3. Step 3: Cross multiply
    538,915.80x = 808,665.30 × 223,404.60
  4. Step 4: Simplify right side
    538,915.80x = 180,659,547,880.38
  5. Step 5: Solve for x
    x = 180,659,547,880.38/538,915.80
  6. Step 6: Final answer
    x = 335,227.78

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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.