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Finding the Fourth Proportional to 375,346.47, 518,015.39 and 214,225.86

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Solution

The fourth proportional to 375,346.47, 518,015.39 and 214,225.86 is: 295,652.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,346.47 : 518,015.39 = 214,225.86 : x
  2. Step 2: Convert to fraction form
    375,346.47/518,015.39 = 214,225.86/x
  3. Step 3: Cross multiply
    375,346.47x = 518,015.39 × 214,225.86
  4. Step 4: Simplify right side
    375,346.47x = 110,972,291,344.86
  5. Step 5: Solve for x
    x = 110,972,291,344.86/375,346.47
  6. Step 6: Final answer
    x = 295,652.95

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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.