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Finding the Fourth Proportional to 360,428.79, 497,427.98 and 199,296.03

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Solution

The fourth proportional to 360,428.79, 497,427.98 and 199,296.03 is: 275,048.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,428.79 : 497,427.98 = 199,296.03 : x
  2. Step 2: Convert to fraction form
    360,428.79/497,427.98 = 199,296.03/x
  3. Step 3: Cross multiply
    360,428.79x = 497,427.98 × 199,296.03
  4. Step 4: Simplify right side
    360,428.79x = 99,135,420,628.44
  5. Step 5: Solve for x
    x = 99,135,420,628.44/360,428.79
  6. Step 6: Final answer
    x = 275,048.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.