Home / 804,165.80-1,206,248.70-213,189.80

Finding the Fourth Proportional to 804,165.80, 1,206,248.70 and 213,189.80

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Solution

The fourth proportional to 804,165.80, 1,206,248.70 and 213,189.80 is: 319,784.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,165.80 : 1,206,248.70 = 213,189.80 : x
  2. Step 2: Convert to fraction form
    804,165.80/1,206,248.70 = 213,189.80/x
  3. Step 3: Cross multiply
    804,165.80x = 1,206,248.70 × 213,189.80
  4. Step 4: Simplify right side
    804,165.80x = 257,159,919,103.26
  5. Step 5: Solve for x
    x = 257,159,919,103.26/804,165.80
  6. Step 6: Final answer
    x = 319,784.70

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Similar ratio
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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.