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Finding the Fourth Proportional to 387,160.82, 534,188.46 and 225,923.84

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Solution

The fourth proportional to 387,160.82, 534,188.46 and 225,923.84 is: 311,720.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,160.82 : 534,188.46 = 225,923.84 : x
  2. Step 2: Convert to fraction form
    387,160.82/534,188.46 = 225,923.84/x
  3. Step 3: Cross multiply
    387,160.82x = 534,188.46 × 225,923.84
  4. Step 4: Simplify right side
    387,160.82x = 120,685,908,166.89
  5. Step 5: Solve for x
    x = 120,685,908,166.89/387,160.82
  6. Step 6: Final answer
    x = 311,720.35

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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.