Home / 387,091.26-534,172.22-217,332.54

Finding the Fourth Proportional to 387,091.26, 534,172.22 and 217,332.54

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Solution

The fourth proportional to 387,091.26, 534,172.22 and 217,332.54 is: 299,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,091.26 : 534,172.22 = 217,332.54 : x
  2. Step 2: Convert to fraction form
    387,091.26/534,172.22 = 217,332.54/x
  3. Step 3: Cross multiply
    387,091.26x = 534,172.22 × 217,332.54
  4. Step 4: Simplify right side
    387,091.26x = 116,093,005,370.04
  5. Step 5: Solve for x
    x = 116,093,005,370.04/387,091.26
  6. Step 6: Final answer
    x = 299,911.20

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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.