Home / 691,221.50-1,036,832.25-165,909.50

Finding the Fourth Proportional to 691,221.50, 1,036,832.25 and 165,909.50

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Solution

The fourth proportional to 691,221.50, 1,036,832.25 and 165,909.50 is: 248,864.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,221.50 : 1,036,832.25 = 165,909.50 : x
  2. Step 2: Convert to fraction form
    691,221.50/1,036,832.25 = 165,909.50/x
  3. Step 3: Cross multiply
    691,221.50x = 1,036,832.25 × 165,909.50
  4. Step 4: Simplify right side
    691,221.50x = 172,020,320,181.38
  5. Step 5: Solve for x
    x = 172,020,320,181.38/691,221.50
  6. Step 6: Final answer
    x = 248,864.25

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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.