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Finding the Fourth Proportional to 358,906.60, 495,313.20 and 197,761.60

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Solution

The fourth proportional to 358,906.60, 495,313.20 and 197,761.60 is: 272,923.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,906.60 : 495,313.20 = 197,761.60 : x
  2. Step 2: Convert to fraction form
    358,906.60/495,313.20 = 197,761.60/x
  3. Step 3: Cross multiply
    358,906.60x = 495,313.20 × 197,761.60
  4. Step 4: Simplify right side
    358,906.60x = 97,953,930,933.12
  5. Step 5: Solve for x
    x = 97,953,930,933.12/358,906.60
  6. Step 6: Final answer
    x = 272,923.18

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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.