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Finding the Fourth Proportional to 301,228.76, 415,649.40 and 173,879.75

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Solution

The fourth proportional to 301,228.76, 415,649.40 and 173,879.75 is: 239,927.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,228.76 : 415,649.40 = 173,879.75 : x
  2. Step 2: Convert to fraction form
    301,228.76/415,649.40 = 173,879.75/x
  3. Step 3: Cross multiply
    301,228.76x = 415,649.40 × 173,879.75
  4. Step 4: Simplify right side
    301,228.76x = 72,273,013,759.65
  5. Step 5: Solve for x
    x = 72,273,013,759.65/301,228.76
  6. Step 6: Final answer
    x = 239,927.34

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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.