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Finding the Fourth Proportional to 310,836.96, 429,109.92 and 203,571.36

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Solution

The fourth proportional to 310,836.96, 429,109.92 and 203,571.36 is: 281,029.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,836.96 : 429,109.92 = 203,571.36 : x
  2. Step 2: Convert to fraction form
    310,836.96/429,109.92 = 203,571.36/x
  3. Step 3: Cross multiply
    310,836.96x = 429,109.92 × 203,571.36
  4. Step 4: Simplify right side
    310,836.96x = 87,354,490,003.89
  5. Step 5: Solve for x
    x = 87,354,490,003.89/310,836.96
  6. Step 6: Final answer
    x = 281,029.93

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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.