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Finding the Fourth Proportional to 208,632.06, 287,788.88 and 133,180.56

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Solution

The fourth proportional to 208,632.06, 287,788.88 and 133,180.56 is: 183,710.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,632.06 : 287,788.88 = 133,180.56 : x
  2. Step 2: Convert to fraction form
    208,632.06/287,788.88 = 133,180.56/x
  3. Step 3: Cross multiply
    208,632.06x = 287,788.88 × 133,180.56
  4. Step 4: Simplify right side
    208,632.06x = 38,327,883,534.27
  5. Step 5: Solve for x
    x = 38,327,883,534.27/208,632.06
  6. Step 6: Final answer
    x = 183,710.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.