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Finding the Fourth Proportional to 316,488.35, 436,758.73 and 173,261.72

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Solution

The fourth proportional to 316,488.35, 436,758.73 and 173,261.72 is: 239,103.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,488.35 : 436,758.73 = 173,261.72 : x
  2. Step 2: Convert to fraction form
    316,488.35/436,758.73 = 173,261.72/x
  3. Step 3: Cross multiply
    316,488.35x = 436,758.73 × 173,261.72
  4. Step 4: Simplify right side
    316,488.35x = 75,673,568,784.82
  5. Step 5: Solve for x
    x = 75,673,568,784.82/316,488.35
  6. Step 6: Final answer
    x = 239,103.81

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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.