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Finding the Fourth Proportional to 375,558, 518,270.04 and 216,582

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Solution

The fourth proportional to 375,558, 518,270.04 and 216,582 is: 298,883.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,558 : 518,270.04 = 216,582 : x
  2. Step 2: Convert to fraction form
    375,558/518,270.04 = 216,582/x
  3. Step 3: Cross multiply
    375,558x = 518,270.04 × 216,582
  4. Step 4: Simplify right side
    375,558x = 112,247,961,803.28
  5. Step 5: Solve for x
    x = 112,247,961,803.28/375,558
  6. Step 6: Final answer
    x = 298,883.16

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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.