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Finding the Fourth Proportional to 611,301.60, 916,952.40 and 211,982.74

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Solution

The fourth proportional to 611,301.60, 916,952.40 and 211,982.74 is: 317,974.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,301.60 : 916,952.40 = 211,982.74 : x
  2. Step 2: Convert to fraction form
    611,301.60/916,952.40 = 211,982.74/x
  3. Step 3: Cross multiply
    611,301.60x = 916,952.40 × 211,982.74
  4. Step 4: Simplify right side
    611,301.60x = 194,378,079,909.20
  5. Step 5: Solve for x
    x = 194,378,079,909.20/611,301.60
  6. Step 6: Final answer
    x = 317,974.11

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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.