Home / 287,721.54-397,057.42-166,934.74

Finding the Fourth Proportional to 287,721.54, 397,057.42 and 166,934.74

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Solution

The fourth proportional to 287,721.54, 397,057.42 and 166,934.74 is: 230,370.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,721.54 : 397,057.42 = 166,934.74 : x
  2. Step 2: Convert to fraction form
    287,721.54/397,057.42 = 166,934.74/x
  3. Step 3: Cross multiply
    287,721.54x = 397,057.42 × 166,934.74
  4. Step 4: Simplify right side
    287,721.54x = 66,282,677,172.77
  5. Step 5: Solve for x
    x = 66,282,677,172.77/287,721.54
  6. Step 6: Final answer
    x = 230,370.92

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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.