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Finding the Fourth Proportional to 418,982.40, 628,214.40 and 241,401.60

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Solution

The fourth proportional to 418,982.40, 628,214.40 and 241,401.60 is: 361,953.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,982.40 : 628,214.40 = 241,401.60 : x
  2. Step 2: Convert to fraction form
    418,982.40/628,214.40 = 241,401.60/x
  3. Step 3: Cross multiply
    418,982.40x = 628,214.40 × 241,401.60
  4. Step 4: Simplify right side
    418,982.40x = 151,651,961,303.04
  5. Step 5: Solve for x
    x = 151,651,961,303.04/418,982.40
  6. Step 6: Final answer
    x = 361,953.06

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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.