Home / 387,747.92-535,140.36-217,982.24

Finding the Fourth Proportional to 387,747.92, 535,140.36 and 217,982.24

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Solution

The fourth proportional to 387,747.92, 535,140.36 and 217,982.24 is: 300,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,747.92 : 535,140.36 = 217,982.24 : x
  2. Step 2: Convert to fraction form
    387,747.92/535,140.36 = 217,982.24/x
  3. Step 3: Cross multiply
    387,747.92x = 535,140.36 × 217,982.24
  4. Step 4: Simplify right side
    387,747.92x = 116,651,094,387.21
  5. Step 5: Solve for x
    x = 116,651,094,387.21/387,747.92
  6. Step 6: Final answer
    x = 300,842.61

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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.