Home / 438,318.88-656,929.46-235,416.36

Finding the Fourth Proportional to 438,318.88, 656,929.46 and 235,416.36

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Solution

The fourth proportional to 438,318.88, 656,929.46 and 235,416.36 is: 352,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,318.88 : 656,929.46 = 235,416.36 : x
  2. Step 2: Convert to fraction form
    438,318.88/656,929.46 = 235,416.36/x
  3. Step 3: Cross multiply
    438,318.88x = 656,929.46 × 235,416.36
  4. Step 4: Simplify right side
    438,318.88x = 154,651,942,249.97
  5. Step 5: Solve for x
    x = 154,651,942,249.97/438,318.88
  6. Step 6: Final answer
    x = 352,829.75

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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.