Home / 287,719.50-397,091.40-165,260.06

Finding the Fourth Proportional to 287,719.50, 397,091.40 and 165,260.06

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Solution

The fourth proportional to 287,719.50, 397,091.40 and 165,260.06 is: 228,080.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,719.50 : 397,091.40 = 165,260.06 : x
  2. Step 2: Convert to fraction form
    287,719.50/397,091.40 = 165,260.06/x
  3. Step 3: Cross multiply
    287,719.50x = 397,091.40 × 165,260.06
  4. Step 4: Simplify right side
    287,719.50x = 65,623,348,589.48
  5. Step 5: Solve for x
    x = 65,623,348,589.48/287,719.50
  6. Step 6: Final answer
    x = 228,080.99

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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.