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Finding the Fourth Proportional to 450,178.40, 675,170.40 and 197,458.40

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Solution

The fourth proportional to 450,178.40, 675,170.40 and 197,458.40 is: 296,144.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,178.40 : 675,170.40 = 197,458.40 : x
  2. Step 2: Convert to fraction form
    450,178.40/675,170.40 = 197,458.40/x
  3. Step 3: Cross multiply
    450,178.40x = 675,170.40 × 197,458.40
  4. Step 4: Simplify right side
    450,178.40x = 133,318,066,911.36
  5. Step 5: Solve for x
    x = 133,318,066,911.36/450,178.40
  6. Step 6: Final answer
    x = 296,144.97

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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.