Home / 387,081.63-534,206.33-215,033.06

Finding the Fourth Proportional to 387,081.63, 534,206.33 and 215,033.06

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Solution

The fourth proportional to 387,081.63, 534,206.33 and 215,033.06 is: 296,764.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,081.63 : 534,206.33 = 215,033.06 : x
  2. Step 2: Convert to fraction form
    387,081.63/534,206.33 = 215,033.06/x
  3. Step 3: Cross multiply
    387,081.63x = 534,206.33 × 215,033.06
  4. Step 4: Simplify right side
    387,081.63x = 114,872,021,811.27
  5. Step 5: Solve for x
    x = 114,872,021,811.27/387,081.63
  6. Step 6: Final answer
    x = 296,764.33

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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.