Home / 290,131.62-435,321.27-163,866.66

Finding the Fourth Proportional to 290,131.62, 435,321.27 and 163,866.66

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Solution

The fourth proportional to 290,131.62, 435,321.27 and 163,866.66 is: 245,869.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,131.62 : 435,321.27 = 163,866.66 : x
  2. Step 2: Convert to fraction form
    290,131.62/435,321.27 = 163,866.66/x
  3. Step 3: Cross multiply
    290,131.62x = 435,321.27 × 163,866.66
  4. Step 4: Simplify right side
    290,131.62x = 71,334,642,541.86
  5. Step 5: Solve for x
    x = 71,334,642,541.86/290,131.62
  6. Step 6: Final answer
    x = 245,869.93

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.