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Finding the Fourth Proportional to 375,455.04, 518,128 and 224,552

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Solution

The fourth proportional to 375,455.04, 518,128 and 224,552 is: 309,881.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,455.04 : 518,128 = 224,552 : x
  2. Step 2: Convert to fraction form
    375,455.04/518,128 = 224,552/x
  3. Step 3: Cross multiply
    375,455.04x = 518,128 × 224,552
  4. Step 4: Simplify right side
    375,455.04x = 116,346,678,656
  5. Step 5: Solve for x
    x = 116,346,678,656/375,455.04
  6. Step 6: Final answer
    x = 309,881.79

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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.