Home / 225,569.18-311,264.80-130,057.42

Finding the Fourth Proportional to 225,569.18, 311,264.80 and 130,057.42

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Solution

The fourth proportional to 225,569.18, 311,264.80 and 130,057.42 is: 179,467.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,569.18 : 311,264.80 = 130,057.42 : x
  2. Step 2: Convert to fraction form
    225,569.18/311,264.80 = 130,057.42/x
  3. Step 3: Cross multiply
    225,569.18x = 311,264.80 × 130,057.42
  4. Step 4: Simplify right side
    225,569.18x = 40,482,296,824.82
  5. Step 5: Solve for x
    x = 40,482,296,824.82/225,569.18
  6. Step 6: Final answer
    x = 179,467.32

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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.