Home / 388,284.43-535,727.89-227,179.07

Finding the Fourth Proportional to 388,284.43, 535,727.89 and 227,179.07

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Solution

The fourth proportional to 388,284.43, 535,727.89 and 227,179.07 is: 313,445.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,284.43 : 535,727.89 = 227,179.07 : x
  2. Step 2: Convert to fraction form
    388,284.43/535,727.89 = 227,179.07/x
  3. Step 3: Cross multiply
    388,284.43x = 535,727.89 × 227,179.07
  4. Step 4: Simplify right side
    388,284.43x = 121,706,163,823.26
  5. Step 5: Solve for x
    x = 121,706,163,823.26/388,284.43
  6. Step 6: Final answer
    x = 313,445.90

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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.