Home / 387,108.76-534,196.32-217,350.04

Finding the Fourth Proportional to 387,108.76, 534,196.32 and 217,350.04

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Solution

The fourth proportional to 387,108.76, 534,196.32 and 217,350.04 is: 299,935.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,108.76 : 534,196.32 = 217,350.04 : x
  2. Step 2: Convert to fraction form
    387,108.76/534,196.32 = 217,350.04/x
  3. Step 3: Cross multiply
    387,108.76x = 534,196.32 × 217,350.04
  4. Step 4: Simplify right side
    387,108.76x = 116,107,591,519.85
  5. Step 5: Solve for x
    x = 116,107,591,519.85/387,108.76
  6. Step 6: Final answer
    x = 299,935.32

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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.