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Finding the Fourth Proportional to 538,958.31, 808,608.06 and 159,880.53

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Solution

The fourth proportional to 538,958.31, 808,608.06 and 159,880.53 is: 239,871.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,958.31 : 808,608.06 = 159,880.53 : x
  2. Step 2: Convert to fraction form
    538,958.31/808,608.06 = 159,880.53/x
  3. Step 3: Cross multiply
    538,958.31x = 808,608.06 × 159,880.53
  4. Step 4: Simplify right side
    538,958.31x = 129,280,685,195.07
  5. Step 5: Solve for x
    x = 129,280,685,195.07/538,958.31
  6. Step 6: Final answer
    x = 239,871.40

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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.