Home / 320,823.07-442,689.46-177,582.79

Finding the Fourth Proportional to 320,823.07, 442,689.46 and 177,582.79

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Solution

The fourth proportional to 320,823.07, 442,689.46 and 177,582.79 is: 245,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,823.07 : 442,689.46 = 177,582.79 : x
  2. Step 2: Convert to fraction form
    320,823.07/442,689.46 = 177,582.79/x
  3. Step 3: Cross multiply
    320,823.07x = 442,689.46 × 177,582.79
  4. Step 4: Simplify right side
    320,823.07x = 78,614,029,410.39
  5. Step 5: Solve for x
    x = 78,614,029,410.39/320,823.07
  6. Step 6: Final answer
    x = 245,038.58

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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.