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Finding the Fourth Proportional to 225,591.09, 311,315.65 and 134,950.87

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Solution

The fourth proportional to 225,591.09, 311,315.65 and 134,950.87 is: 186,232.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,591.09 : 311,315.65 = 134,950.87 : x
  2. Step 2: Convert to fraction form
    225,591.09/311,315.65 = 134,950.87/x
  3. Step 3: Cross multiply
    225,591.09x = 311,315.65 × 134,950.87
  4. Step 4: Simplify right side
    225,591.09x = 42,012,317,812.12
  5. Step 5: Solve for x
    x = 42,012,317,812.12/225,591.09
  6. Step 6: Final answer
    x = 186,232.17

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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.