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Finding the Fourth Proportional to 303,433.60, 455,150.40 and 197,145.40

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Solution

The fourth proportional to 303,433.60, 455,150.40 and 197,145.40 is: 295,718.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,433.60 : 455,150.40 = 197,145.40 : x
  2. Step 2: Convert to fraction form
    303,433.60/455,150.40 = 197,145.40/x
  3. Step 3: Cross multiply
    303,433.60x = 455,150.40 × 197,145.40
  4. Step 4: Simplify right side
    303,433.60x = 89,730,807,668.16
  5. Step 5: Solve for x
    x = 89,730,807,668.16/303,433.60
  6. Step 6: Final answer
    x = 295,718.10

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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.