Home / 222,161.92-306,389.64-157,503.40

Finding the Fourth Proportional to 222,161.92, 306,389.64 and 157,503.40

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Solution

The fourth proportional to 222,161.92, 306,389.64 and 157,503.40 is: 217,217.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,161.92 : 306,389.64 = 157,503.40 : x
  2. Step 2: Convert to fraction form
    222,161.92/306,389.64 = 157,503.40/x
  3. Step 3: Cross multiply
    222,161.92x = 306,389.64 × 157,503.40
  4. Step 4: Simplify right side
    222,161.92x = 48,257,410,024.78
  5. Step 5: Solve for x
    x = 48,257,410,024.78/222,161.92
  6. Step 6: Final answer
    x = 217,217.29

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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.