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Finding the Fourth Proportional to 398,865.20, 598,297.80 and 241,401.20

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Solution

The fourth proportional to 398,865.20, 598,297.80 and 241,401.20 is: 362,101.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,865.20 : 598,297.80 = 241,401.20 : x
  2. Step 2: Convert to fraction form
    398,865.20/598,297.80 = 241,401.20/x
  3. Step 3: Cross multiply
    398,865.20x = 598,297.80 × 241,401.20
  4. Step 4: Simplify right side
    398,865.20x = 144,429,806,877.36
  5. Step 5: Solve for x
    x = 144,429,806,877.36/398,865.20
  6. Step 6: Final answer
    x = 362,101.80

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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.