Home / 421,273.77-581,358.05-230,287.20

Finding the Fourth Proportional to 421,273.77, 581,358.05 and 230,287.20

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Solution

The fourth proportional to 421,273.77, 581,358.05 and 230,287.20 is: 317,796.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,273.77 : 581,358.05 = 230,287.20 : x
  2. Step 2: Convert to fraction form
    421,273.77/581,358.05 = 230,287.20/x
  3. Step 3: Cross multiply
    421,273.77x = 581,358.05 × 230,287.20
  4. Step 4: Simplify right side
    421,273.77x = 133,879,317,531.96
  5. Step 5: Solve for x
    x = 133,879,317,531.96/421,273.77
  6. Step 6: Final answer
    x = 317,796.47

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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.