Home / 289,730.88-399,821.04-162,414.72

Finding the Fourth Proportional to 289,730.88, 399,821.04 and 162,414.72

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Solution

The fourth proportional to 289,730.88, 399,821.04 and 162,414.72 is: 224,128.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,730.88 : 399,821.04 = 162,414.72 : x
  2. Step 2: Convert to fraction form
    289,730.88/399,821.04 = 162,414.72/x
  3. Step 3: Cross multiply
    289,730.88x = 399,821.04 × 162,414.72
  4. Step 4: Simplify right side
    289,730.88x = 64,936,822,261.71
  5. Step 5: Solve for x
    x = 64,936,822,261.71/289,730.88
  6. Step 6: Final answer
    x = 224,128.07

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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.