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Finding the Fourth Proportional to 342,899.02, 474,103.63 and 300,335.45

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Solution

The fourth proportional to 342,899.02, 474,103.63 and 300,335.45 is: 415,253.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,899.02 : 474,103.63 = 300,335.45 : x
  2. Step 2: Convert to fraction form
    342,899.02/474,103.63 = 300,335.45/x
  3. Step 3: Cross multiply
    342,899.02x = 474,103.63 × 300,335.45
  4. Step 4: Simplify right side
    342,899.02x = 142,390,125,067.59
  5. Step 5: Solve for x
    x = 142,390,125,067.59/342,899.02
  6. Step 6: Final answer
    x = 415,253.81

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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.