Home / 320,854.10-442,778.79-175,669.30

Finding the Fourth Proportional to 320,854.10, 442,778.79 and 175,669.30

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Solution

The fourth proportional to 320,854.10, 442,778.79 and 175,669.30 is: 242,423.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,854.10 : 442,778.79 = 175,669.30 : x
  2. Step 2: Convert to fraction form
    320,854.10/442,778.79 = 175,669.30/x
  3. Step 3: Cross multiply
    320,854.10x = 442,778.79 × 175,669.30
  4. Step 4: Simplify right side
    320,854.10x = 77,782,639,645.96
  5. Step 5: Solve for x
    x = 77,782,639,645.96/320,854.10
  6. Step 6: Final answer
    x = 242,423.70

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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.