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Finding the Fourth Proportional to 228,293.70, 342,440.55 and 103,634.70

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Solution

The fourth proportional to 228,293.70, 342,440.55 and 103,634.70 is: 155,452.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,293.70 : 342,440.55 = 103,634.70 : x
  2. Step 2: Convert to fraction form
    228,293.70/342,440.55 = 103,634.70/x
  3. Step 3: Cross multiply
    228,293.70x = 342,440.55 × 103,634.70
  4. Step 4: Simplify right side
    228,293.70x = 35,488,723,667.09
  5. Step 5: Solve for x
    x = 35,488,723,667.09/228,293.70
  6. Step 6: Final answer
    x = 155,452.05

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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.