Home / 288,926.87-398,709.43-159,865.58

Finding the Fourth Proportional to 288,926.87, 398,709.43 and 159,865.58

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Solution

The fourth proportional to 288,926.87, 398,709.43 and 159,865.58 is: 220,609.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,926.87 : 398,709.43 = 159,865.58 : x
  2. Step 2: Convert to fraction form
    288,926.87/398,709.43 = 159,865.58/x
  3. Step 3: Cross multiply
    288,926.87x = 398,709.43 × 159,865.58
  4. Step 4: Simplify right side
    288,926.87x = 63,739,914,875.53
  5. Step 5: Solve for x
    x = 63,739,914,875.53/288,926.87
  6. Step 6: Final answer
    x = 220,609.17

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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.