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Finding the Fourth Proportional to 300,772.74, 415,038.78 and 173,423.73

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Solution

The fourth proportional to 300,772.74, 415,038.78 and 173,423.73 is: 239,308.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,772.74 : 415,038.78 = 173,423.73 : x
  2. Step 2: Convert to fraction form
    300,772.74/415,038.78 = 173,423.73/x
  3. Step 3: Cross multiply
    300,772.74x = 415,038.78 × 173,423.73
  4. Step 4: Simplify right side
    300,772.74x = 71,977,573,322.25
  5. Step 5: Solve for x
    x = 71,977,573,322.25/300,772.74
  6. Step 6: Final answer
    x = 239,308.83

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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.