Home / 387,531.26-534,843.24-217,765.40

Finding the Fourth Proportional to 387,531.26, 534,843.24 and 217,765.40

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Solution

The fourth proportional to 387,531.26, 534,843.24 and 217,765.40 is: 300,544.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,531.26 : 534,843.24 = 217,765.40 : x
  2. Step 2: Convert to fraction form
    387,531.26/534,843.24 = 217,765.40/x
  3. Step 3: Cross multiply
    387,531.26x = 534,843.24 × 217,765.40
  4. Step 4: Simplify right side
    387,531.26x = 116,470,352,095.90
  5. Step 5: Solve for x
    x = 116,470,352,095.90/387,531.26
  6. Step 6: Final answer
    x = 300,544.41

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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.