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Finding the Fourth Proportional to 243,778.40, 365,677.16 and 75,283.72

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Solution

The fourth proportional to 243,778.40, 365,677.16 and 75,283.72 is: 112,928.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,778.40 : 365,677.16 = 75,283.72 : x
  2. Step 2: Convert to fraction form
    243,778.40/365,677.16 = 75,283.72/x
  3. Step 3: Cross multiply
    243,778.40x = 365,677.16 × 75,283.72
  4. Step 4: Simplify right side
    243,778.40x = 27,529,536,923.84
  5. Step 5: Solve for x
    x = 27,529,536,923.84/243,778.40
  6. Step 6: Final answer
    x = 112,928.53

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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.