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Finding the Fourth Proportional to 158,232.76, 218,367.22 and 90,260.80

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Solution

The fourth proportional to 158,232.76, 218,367.22 and 90,260.80 is: 124,563.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,232.76 : 218,367.22 = 90,260.80 : x
  2. Step 2: Convert to fraction form
    158,232.76/218,367.22 = 90,260.80/x
  3. Step 3: Cross multiply
    158,232.76x = 218,367.22 × 90,260.80
  4. Step 4: Simplify right side
    158,232.76x = 19,709,999,970.98
  5. Step 5: Solve for x
    x = 19,709,999,970.98/158,232.76
  6. Step 6: Final answer
    x = 124,563.33

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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.