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Finding the Fourth Proportional to 297,087.40, 445,688.70 and 149,343.40

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Solution

The fourth proportional to 297,087.40, 445,688.70 and 149,343.40 is: 224,044.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,087.40 : 445,688.70 = 149,343.40 : x
  2. Step 2: Convert to fraction form
    297,087.40/445,688.70 = 149,343.40/x
  3. Step 3: Cross multiply
    297,087.40x = 445,688.70 × 149,343.40
  4. Step 4: Simplify right side
    297,087.40x = 66,560,665,799.58
  5. Step 5: Solve for x
    x = 66,560,665,799.58/297,087.40
  6. Step 6: Final answer
    x = 224,044.06

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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.