Home / 288,103.94-397,621.05-160,805.96

Finding the Fourth Proportional to 288,103.94, 397,621.05 and 160,805.96

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Solution

The fourth proportional to 288,103.94, 397,621.05 and 160,805.96 is: 221,933.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,103.94 : 397,621.05 = 160,805.96 : x
  2. Step 2: Convert to fraction form
    288,103.94/397,621.05 = 160,805.96/x
  3. Step 3: Cross multiply
    288,103.94x = 397,621.05 × 160,805.96
  4. Step 4: Simplify right side
    288,103.94x = 63,939,834,465.94
  5. Step 5: Solve for x
    x = 63,939,834,465.94/288,103.94
  6. Step 6: Final answer
    x = 221,933.22

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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.