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Finding the Fourth Proportional to 299,335.68, 412,140.24 and 253,919.52

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Solution

The fourth proportional to 299,335.68, 412,140.24 and 253,919.52 is: 349,609.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,335.68 : 412,140.24 = 253,919.52 : x
  2. Step 2: Convert to fraction form
    299,335.68/412,140.24 = 253,919.52/x
  3. Step 3: Cross multiply
    299,335.68x = 412,140.24 × 253,919.52
  4. Step 4: Simplify right side
    299,335.68x = 104,650,451,913.49
  5. Step 5: Solve for x
    x = 104,650,451,913.49/299,335.68
  6. Step 6: Final answer
    x = 349,609.01

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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.