Home / 287,721.54-397,057.41-166,934.73

Finding the Fourth Proportional to 287,721.54, 397,057.41 and 166,934.73

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Solution

The fourth proportional to 287,721.54, 397,057.41 and 166,934.73 is: 230,370.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,721.54 : 397,057.41 = 166,934.73 : x
  2. Step 2: Convert to fraction form
    287,721.54/397,057.41 = 166,934.73/x
  3. Step 3: Cross multiply
    287,721.54x = 397,057.41 × 166,934.73
  4. Step 4: Simplify right side
    287,721.54x = 66,282,671,532.85
  5. Step 5: Solve for x
    x = 66,282,671,532.85/287,721.54
  6. Step 6: Final answer
    x = 230,370.90

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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.