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Finding the Fourth Proportional to 611,301.60, 916,992.90 and 162,016.20

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Solution

The fourth proportional to 611,301.60, 916,992.90 and 162,016.20 is: 243,035.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    611,301.60 : 916,992.90 = 162,016.20 : x
  2. Step 2: Convert to fraction form
    611,301.60/916,992.90 = 162,016.20/x
  3. Step 3: Cross multiply
    611,301.60x = 916,992.90 × 162,016.20
  4. Step 4: Simplify right side
    611,301.60x = 148,567,705,084.98
  5. Step 5: Solve for x
    x = 148,567,705,084.98/611,301.60
  6. Step 6: Final answer
    x = 243,035.03

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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.