Home / 320,980.29-442,952.76-177,740.35

Finding the Fourth Proportional to 320,980.29, 442,952.76 and 177,740.35

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Solution

The fourth proportional to 320,980.29, 442,952.76 and 177,740.35 is: 245,281.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,980.29 : 442,952.76 = 177,740.35 : x
  2. Step 2: Convert to fraction form
    320,980.29/442,952.76 = 177,740.35/x
  3. Step 3: Cross multiply
    320,980.29x = 442,952.76 × 177,740.35
  4. Step 4: Simplify right side
    320,980.29x = 78,730,578,595.87
  5. Step 5: Solve for x
    x = 78,730,578,595.87/320,980.29
  6. Step 6: Final answer
    x = 245,281.66

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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.