Home / 287,879.35-397,274.19-160,563.15

Finding the Fourth Proportional to 287,879.35, 397,274.19 and 160,563.15

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Solution

The fourth proportional to 287,879.35, 397,274.19 and 160,563.15 is: 221,577.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,879.35 : 397,274.19 = 160,563.15 : x
  2. Step 2: Convert to fraction form
    287,879.35/397,274.19 = 160,563.15/x
  3. Step 3: Cross multiply
    287,879.35x = 397,274.19 × 160,563.15
  4. Step 4: Simplify right side
    287,879.35x = 63,787,595,360.10
  5. Step 5: Solve for x
    x = 63,787,595,360.10/287,879.35
  6. Step 6: Final answer
    x = 221,577.53

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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.