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Finding the Fourth Proportional to 346,431.66, 477,701.04 and 300,717.90

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Solution

The fourth proportional to 346,431.66, 477,701.04 and 300,717.90 is: 414,665.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,431.66 : 477,701.04 = 300,717.90 : x
  2. Step 2: Convert to fraction form
    346,431.66/477,701.04 = 300,717.90/x
  3. Step 3: Cross multiply
    346,431.66x = 477,701.04 × 300,717.90
  4. Step 4: Simplify right side
    346,431.66x = 143,653,253,576.62
  5. Step 5: Solve for x
    x = 143,653,253,576.62/346,431.66
  6. Step 6: Final answer
    x = 414,665.49

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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.