Home / 405,345.26-559,316.54-230,917.03

Finding the Fourth Proportional to 405,345.26, 559,316.54 and 230,917.03

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Solution

The fourth proportional to 405,345.26, 559,316.54 and 230,917.03 is: 318,631.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,345.26 : 559,316.54 = 230,917.03 : x
  2. Step 2: Convert to fraction form
    405,345.26/559,316.54 = 230,917.03/x
  3. Step 3: Cross multiply
    405,345.26x = 559,316.54 × 230,917.03
  4. Step 4: Simplify right side
    405,345.26x = 129,155,713,425.68
  5. Step 5: Solve for x
    x = 129,155,713,425.68/405,345.26
  6. Step 6: Final answer
    x = 318,631.36

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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.