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Finding the Fourth Proportional to 297,496.40, 444,948.60 and 266,133.20

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Solution

The fourth proportional to 297,496.40, 444,948.60 and 266,133.20 is: 398,040.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,496.40 : 444,948.60 = 266,133.20 : x
  2. Step 2: Convert to fraction form
    297,496.40/444,948.60 = 266,133.20/x
  3. Step 3: Cross multiply
    297,496.40x = 444,948.60 × 266,133.20
  4. Step 4: Simplify right side
    297,496.40x = 118,415,594,753.52
  5. Step 5: Solve for x
    x = 118,415,594,753.52/297,496.40
  6. Step 6: Final answer
    x = 398,040.43

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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.