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Finding the Fourth Proportional to 202,401.30, 303,785.55 and 102,630.90

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Solution

The fourth proportional to 202,401.30, 303,785.55 and 102,630.90 is: 154,039.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,401.30 : 303,785.55 = 102,630.90 : x
  2. Step 2: Convert to fraction form
    202,401.30/303,785.55 = 102,630.90/x
  3. Step 3: Cross multiply
    202,401.30x = 303,785.55 × 102,630.90
  4. Step 4: Simplify right side
    202,401.30x = 31,177,784,403.50
  5. Step 5: Solve for x
    x = 31,177,784,403.50/202,401.30
  6. Step 6: Final answer
    x = 154,039.45

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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.