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Finding the Fourth Proportional to 299,230.22, 412,455.32 and 202,398.76

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Solution

The fourth proportional to 299,230.22, 412,455.32 and 202,398.76 is: 278,984.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,230.22 : 412,455.32 = 202,398.76 : x
  2. Step 2: Convert to fraction form
    299,230.22/412,455.32 = 202,398.76/x
  3. Step 3: Cross multiply
    299,230.22x = 412,455.32 × 202,398.76
  4. Step 4: Simplify right side
    299,230.22x = 83,480,444,311.41
  5. Step 5: Solve for x
    x = 83,480,444,311.41/299,230.22
  6. Step 6: Final answer
    x = 278,984.01

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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.