Home / 311,826.69-430,320.84-168,586.74

Finding the Fourth Proportional to 311,826.69, 430,320.84 and 168,586.74

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Solution

The fourth proportional to 311,826.69, 430,320.84 and 168,586.74 is: 232,649.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,826.69 : 430,320.84 = 168,586.74 : x
  2. Step 2: Convert to fraction form
    311,826.69/430,320.84 = 168,586.74/x
  3. Step 3: Cross multiply
    311,826.69x = 430,320.84 × 168,586.74
  4. Step 4: Simplify right side
    311,826.69x = 72,546,387,569.66
  5. Step 5: Solve for x
    x = 72,546,387,569.66/311,826.69
  6. Step 6: Final answer
    x = 232,649.71

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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.