Home / 399,221.07-598,929.83-118,738.32

Finding the Fourth Proportional to 399,221.07, 598,929.83 and 118,738.32

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Solution

The fourth proportional to 399,221.07, 598,929.83 and 118,738.32 is: 178,136.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    399,221.07 : 598,929.83 = 118,738.32 : x
  2. Step 2: Convert to fraction form
    399,221.07/598,929.83 = 118,738.32/x
  3. Step 3: Cross multiply
    399,221.07x = 598,929.83 × 118,738.32
  4. Step 4: Simplify right side
    399,221.07x = 71,115,921,218.39
  5. Step 5: Solve for x
    x = 71,115,921,218.39/399,221.07
  6. Step 6: Final answer
    x = 178,136.69

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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.