Home / 287,890.80-397,160.82-166,961.98

Finding the Fourth Proportional to 287,890.80, 397,160.82 and 166,961.98

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Solution

The fourth proportional to 287,890.80, 397,160.82 and 166,961.98 is: 230,333.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,890.80 : 397,160.82 = 166,961.98 : x
  2. Step 2: Convert to fraction form
    287,890.80/397,160.82 = 166,961.98/x
  3. Step 3: Cross multiply
    287,890.80x = 397,160.82 × 166,961.98
  4. Step 4: Simplify right side
    287,890.80x = 66,310,756,885.62
  5. Step 5: Solve for x
    x = 66,310,756,885.62/287,890.80
  6. Step 6: Final answer
    x = 230,333.02

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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.