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Finding the Fourth Proportional to 243,803.90, 365,740.80 and 75,338.94

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Solution

The fourth proportional to 243,803.90, 365,740.80 and 75,338.94 is: 113,019.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,803.90 : 365,740.80 = 75,338.94 : x
  2. Step 2: Convert to fraction form
    243,803.90/365,740.80 = 75,338.94/x
  3. Step 3: Cross multiply
    243,803.90x = 365,740.80 × 75,338.94
  4. Step 4: Simplify right side
    243,803.90x = 27,554,524,186.75
  5. Step 5: Solve for x
    x = 27,554,524,186.75/243,803.90
  6. Step 6: Final answer
    x = 113,019.21

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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.