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Finding the Fourth Proportional to 299,309.10, 448,963.65 and 220,577.10

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Solution

The fourth proportional to 299,309.10, 448,963.65 and 220,577.10 is: 330,865.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,309.10 : 448,963.65 = 220,577.10 : x
  2. Step 2: Convert to fraction form
    299,309.10/448,963.65 = 220,577.10/x
  3. Step 3: Cross multiply
    299,309.10x = 448,963.65 × 220,577.10
  4. Step 4: Simplify right side
    299,309.10x = 99,031,099,922.42
  5. Step 5: Solve for x
    x = 99,031,099,922.42/299,309.10
  6. Step 6: Final answer
    x = 330,865.65

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1.5x scale

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.