Home / 287,892.08-397,291.78-160,575.92

Finding the Fourth Proportional to 287,892.08, 397,291.78 and 160,575.92

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Solution

The fourth proportional to 287,892.08, 397,291.78 and 160,575.92 is: 221,595.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,892.08 : 397,291.78 = 160,575.92 : x
  2. Step 2: Convert to fraction form
    287,892.08/397,291.78 = 160,575.92/x
  3. Step 3: Cross multiply
    287,892.08x = 397,291.78 × 160,575.92
  4. Step 4: Simplify right side
    287,892.08x = 63,795,493,081.94
  5. Step 5: Solve for x
    x = 63,795,493,081.94/287,892.08
  6. Step 6: Final answer
    x = 221,595.17

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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.