Home / 320,343.81-442,034.87-177,106.65

Finding the Fourth Proportional to 320,343.81, 442,034.87 and 177,106.65

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Solution

The fourth proportional to 320,343.81, 442,034.87 and 177,106.65 is: 244,385.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,343.81 : 442,034.87 = 177,106.65 : x
  2. Step 2: Convert to fraction form
    320,343.81/442,034.87 = 177,106.65/x
  3. Step 3: Cross multiply
    320,343.81x = 442,034.87 × 177,106.65
  4. Step 4: Simplify right side
    320,343.81x = 78,287,314,123.35
  5. Step 5: Solve for x
    x = 78,287,314,123.35/320,343.81
  6. Step 6: Final answer
    x = 244,385.29

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1.5x scale

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.