Home / 304,824.16-420,767.76-248,137.12

Finding the Fourth Proportional to 304,824.16, 420,767.76 and 248,137.12

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Solution

The fourth proportional to 304,824.16, 420,767.76 and 248,137.12 is: 342,519.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,824.16 : 420,767.76 = 248,137.12 : x
  2. Step 2: Convert to fraction form
    304,824.16/420,767.76 = 248,137.12/x
  3. Step 3: Cross multiply
    304,824.16x = 420,767.76 × 248,137.12
  4. Step 4: Simplify right side
    304,824.16x = 104,408,100,155.25
  5. Step 5: Solve for x
    x = 104,408,100,155.25/304,824.16
  6. Step 6: Final answer
    x = 342,519.11

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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.