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Finding the Fourth Proportional to 243,486.89, 365,230.33 and 65,993.90

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Solution

The fourth proportional to 243,486.89, 365,230.33 and 65,993.90 is: 98,990.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,486.89 : 365,230.33 = 65,993.90 : x
  2. Step 2: Convert to fraction form
    243,486.89/365,230.33 = 65,993.90/x
  3. Step 3: Cross multiply
    243,486.89x = 365,230.33 × 65,993.90
  4. Step 4: Simplify right side
    243,486.89x = 24,102,971,883.85
  5. Step 5: Solve for x
    x = 24,102,971,883.85/243,486.89
  6. Step 6: Final answer
    x = 98,990.84

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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.