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Finding the Fourth Proportional to 387,151.62, 533,033.37 and 330,334.98

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Solution

The fourth proportional to 387,151.62, 533,033.37 and 330,334.98 is: 454,807.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,151.62 : 533,033.37 = 330,334.98 : x
  2. Step 2: Convert to fraction form
    387,151.62/533,033.37 = 330,334.98/x
  3. Step 3: Cross multiply
    387,151.62x = 533,033.37 × 330,334.98
  4. Step 4: Simplify right side
    387,151.62x = 176,079,567,618.28
  5. Step 5: Solve for x
    x = 176,079,567,618.28/387,151.62
  6. Step 6: Final answer
    x = 454,807.78

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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.