Home / 304,512.05-420,236.57-175,440.42

Finding the Fourth Proportional to 304,512.05, 420,236.57 and 175,440.42

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Solution

The fourth proportional to 304,512.05, 420,236.57 and 175,440.42 is: 242,113.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,512.05 : 420,236.57 = 175,440.42 : x
  2. Step 2: Convert to fraction form
    304,512.05/420,236.57 = 175,440.42/x
  3. Step 3: Cross multiply
    304,512.05x = 420,236.57 × 175,440.42
  4. Step 4: Simplify right side
    304,512.05x = 73,726,480,340.16
  5. Step 5: Solve for x
    x = 73,726,480,340.16/304,512.05
  6. Step 6: Final answer
    x = 242,113.51

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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.