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Finding the Fourth Proportional to 538,978.02, 808,121.42 and 223,652.58

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Solution

The fourth proportional to 538,978.02, 808,121.42 and 223,652.58 is: 335,335.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,978.02 : 808,121.42 = 223,652.58 : x
  2. Step 2: Convert to fraction form
    538,978.02/808,121.42 = 223,652.58/x
  3. Step 3: Cross multiply
    538,978.02x = 808,121.42 × 223,652.58
  4. Step 4: Simplify right side
    538,978.02x = 180,738,440,536.26
  5. Step 5: Solve for x
    x = 180,738,440,536.26/538,978.02
  6. Step 6: Final answer
    x = 335,335.46

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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.