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Finding the Fourth Proportional to 375,531.39, 518,233.31 and 224,628.39

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Solution

The fourth proportional to 375,531.39, 518,233.31 and 224,628.39 is: 309,987.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,531.39 : 518,233.31 = 224,628.39 : x
  2. Step 2: Convert to fraction form
    375,531.39/518,233.31 = 224,628.39/x
  3. Step 3: Cross multiply
    375,531.39x = 518,233.31 × 224,628.39
  4. Step 4: Simplify right side
    375,531.39x = 116,409,912,946.53
  5. Step 5: Solve for x
    x = 116,409,912,946.53/375,531.39
  6. Step 6: Final answer
    x = 309,987.17

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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.