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Finding the Fourth Proportional to 538,915.30, 808,664.55 and 223,404.10

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Solution

The fourth proportional to 538,915.30, 808,664.55 and 223,404.10 is: 335,227.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,915.30 : 808,664.55 = 223,404.10 : x
  2. Step 2: Convert to fraction form
    538,915.30/808,664.55 = 223,404.10/x
  3. Step 3: Cross multiply
    538,915.30x = 808,664.55 × 223,404.10
  4. Step 4: Simplify right side
    538,915.30x = 180,658,975,994.66
  5. Step 5: Solve for x
    x = 180,658,975,994.66/538,915.30
  6. Step 6: Final answer
    x = 335,227.03

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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.