Home / 388,716.17-536,446.53-227,623.10

Finding the Fourth Proportional to 388,716.17, 536,446.53 and 227,623.10

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Solution

The fourth proportional to 388,716.17, 536,446.53 and 227,623.10 is: 314,130.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,716.17 : 536,446.53 = 227,623.10 : x
  2. Step 2: Convert to fraction form
    388,716.17/536,446.53 = 227,623.10/x
  3. Step 3: Cross multiply
    388,716.17x = 536,446.53 × 227,623.10
  4. Step 4: Simplify right side
    388,716.17x = 122,107,619,460.61
  5. Step 5: Solve for x
    x = 122,107,619,460.61/388,716.17
  6. Step 6: Final answer
    x = 314,130.54

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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.