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Finding the Fourth Proportional to 387,033.48, 534,104.10 and 217,267.56

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Solution

The fourth proportional to 387,033.48, 534,104.10 and 217,267.56 is: 299,828.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,033.48 : 534,104.10 = 217,267.56 : x
  2. Step 2: Convert to fraction form
    387,033.48/534,104.10 = 217,267.56/x
  3. Step 3: Cross multiply
    387,033.48x = 534,104.10 × 217,267.56
  4. Step 4: Simplify right side
    387,033.48x = 116,043,494,593.00
  5. Step 5: Solve for x
    x = 116,043,494,593.00/387,033.48
  6. Step 6: Final answer
    x = 299,828.05

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1.5x scale

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.