Home / 388,476.28-536,138.22-227,383.48

Finding the Fourth Proportional to 388,476.28, 536,138.22 and 227,383.48

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Solution

The fourth proportional to 388,476.28, 536,138.22 and 227,383.48 is: 313,813.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,476.28 : 536,138.22 = 227,383.48 : x
  2. Step 2: Convert to fraction form
    388,476.28/536,138.22 = 227,383.48/x
  3. Step 3: Cross multiply
    388,476.28x = 536,138.22 × 227,383.48
  4. Step 4: Simplify right side
    388,476.28x = 121,908,974,224.61
  5. Step 5: Solve for x
    x = 121,908,974,224.61/388,476.28
  6. Step 6: Final answer
    x = 313,813.17

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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.