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Finding the Fourth Proportional to 297,231.40, 445,904.70 and 149,487.40

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Solution

The fourth proportional to 297,231.40, 445,904.70 and 149,487.40 is: 224,260.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,231.40 : 445,904.70 = 149,487.40 : x
  2. Step 2: Convert to fraction form
    297,231.40/445,904.70 = 149,487.40/x
  3. Step 3: Cross multiply
    297,231.40x = 445,904.70 × 149,487.40
  4. Step 4: Simplify right side
    297,231.40x = 66,657,134,250.78
  5. Step 5: Solve for x
    x = 66,657,134,250.78/297,231.40
  6. Step 6: Final answer
    x = 224,260.07

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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.