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Finding the Fourth Proportional to 225,621.66, 311,275.50 and 134,980.22

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Solution

The fourth proportional to 225,621.66, 311,275.50 and 134,980.22 is: 186,223.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,621.66 : 311,275.50 = 134,980.22 : x
  2. Step 2: Convert to fraction form
    225,621.66/311,275.50 = 134,980.22/x
  3. Step 3: Cross multiply
    225,621.66x = 311,275.50 × 134,980.22
  4. Step 4: Simplify right side
    225,621.66x = 42,016,035,470.61
  5. Step 5: Solve for x
    x = 42,016,035,470.61/225,621.66
  6. Step 6: Final answer
    x = 186,223.41

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