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Finding the Fourth Proportional to 389,500.62, 537,600.51 and 228,407.56

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Solution

The fourth proportional to 389,500.62, 537,600.51 and 228,407.56 is: 315,255.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,500.62 : 537,600.51 = 228,407.56 : x
  2. Step 2: Convert to fraction form
    389,500.62/537,600.51 = 228,407.56/x
  3. Step 3: Cross multiply
    389,500.62x = 537,600.51 × 228,407.56
  4. Step 4: Simplify right side
    389,500.62x = 122,792,022,423.86
  5. Step 5: Solve for x
    x = 122,792,022,423.86/389,500.62
  6. Step 6: Final answer
    x = 315,255.01

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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.