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Finding the Fourth Proportional to 228,594.05, 315,613.92 and 142,683.90

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Solution

The fourth proportional to 228,594.05, 315,613.92 and 142,683.90 is: 196,999.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,594.05 : 315,613.92 = 142,683.90 : x
  2. Step 2: Convert to fraction form
    228,594.05/315,613.92 = 142,683.90/x
  3. Step 3: Cross multiply
    228,594.05x = 315,613.92 × 142,683.90
  4. Step 4: Simplify right side
    228,594.05x = 45,033,024,351.40
  5. Step 5: Solve for x
    x = 45,033,024,351.40/228,594.05
  6. Step 6: Final answer
    x = 196,999.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.