Home / 289,621.09-399,673.25-162,299.17

Finding the Fourth Proportional to 289,621.09, 399,673.25 and 162,299.17

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Solution

The fourth proportional to 289,621.09, 399,673.25 and 162,299.17 is: 223,970.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,621.09 : 399,673.25 = 162,299.17 : x
  2. Step 2: Convert to fraction form
    289,621.09/399,673.25 = 162,299.17/x
  3. Step 3: Cross multiply
    289,621.09x = 399,673.25 × 162,299.17
  4. Step 4: Simplify right side
    289,621.09x = 64,866,635,934.71
  5. Step 5: Solve for x
    x = 64,866,635,934.71/289,621.09
  6. Step 6: Final answer
    x = 223,970.69

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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.