Home / 225,802.49-311,617.53-135,141.21

Finding the Fourth Proportional to 225,802.49, 311,617.53 and 135,141.21

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Solution

The fourth proportional to 225,802.49, 311,617.53 and 135,141.21 is: 186,500.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,802.49 : 311,617.53 = 135,141.21 : x
  2. Step 2: Convert to fraction form
    225,802.49/311,617.53 = 135,141.21/x
  3. Step 3: Cross multiply
    225,802.49x = 311,617.53 × 135,141.21
  4. Step 4: Simplify right side
    225,802.49x = 42,112,370,061.41
  5. Step 5: Solve for x
    x = 42,112,370,061.41/225,802.49
  6. Step 6: Final answer
    x = 186,500.91

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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.