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Finding the Fourth Proportional to 283,334.40, 425,001.60 and 216,979.20

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Solution

The fourth proportional to 283,334.40, 425,001.60 and 216,979.20 is: 325,468.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,334.40 : 425,001.60 = 216,979.20 : x
  2. Step 2: Convert to fraction form
    283,334.40/425,001.60 = 216,979.20/x
  3. Step 3: Cross multiply
    283,334.40x = 425,001.60 × 216,979.20
  4. Step 4: Simplify right side
    283,334.40x = 92,216,507,166.72
  5. Step 5: Solve for x
    x = 92,216,507,166.72/283,334.40
  6. Step 6: Final answer
    x = 325,468.80

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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.