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Finding the Fourth Proportional to 387,953.34, 535,295.33 and 226,777.22

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Solution

The fourth proportional to 387,953.34, 535,295.33 and 226,777.22 is: 312,905.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,953.34 : 535,295.33 = 226,777.22 : x
  2. Step 2: Convert to fraction form
    387,953.34/535,295.33 = 226,777.22/x
  3. Step 3: Cross multiply
    387,953.34x = 535,295.33 × 226,777.22
  4. Step 4: Simplify right side
    387,953.34x = 121,392,786,816.38
  5. Step 5: Solve for x
    x = 121,392,786,816.38/387,953.34
  6. Step 6: Final answer
    x = 312,905.64

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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.