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Finding the Fourth Proportional to 538,963.90, 808,307.95 and 159,795.97

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Solution

The fourth proportional to 538,963.90, 808,307.95 and 159,795.97 is: 239,653.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,963.90 : 808,307.95 = 159,795.97 : x
  2. Step 2: Convert to fraction form
    538,963.90/808,307.95 = 159,795.97/x
  3. Step 3: Cross multiply
    538,963.90x = 808,307.95 × 159,795.97
  4. Step 4: Simplify right side
    538,963.90x = 129,164,352,928.96
  5. Step 5: Solve for x
    x = 129,164,352,928.96/538,963.90
  6. Step 6: Final answer
    x = 239,653.07

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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.