Home / 804,138.30-1,206,207.45-213,162.30

Finding the Fourth Proportional to 804,138.30, 1,206,207.45 and 213,162.30

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Solution

The fourth proportional to 804,138.30, 1,206,207.45 and 213,162.30 is: 319,743.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,138.30 : 1,206,207.45 = 213,162.30 : x
  2. Step 2: Convert to fraction form
    804,138.30/1,206,207.45 = 213,162.30/x
  3. Step 3: Cross multiply
    804,138.30x = 1,206,207.45 × 213,162.30
  4. Step 4: Simplify right side
    804,138.30x = 257,117,954,319.14
  5. Step 5: Solve for x
    x = 257,117,954,319.14/804,138.30
  6. Step 6: Final answer
    x = 319,743.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.