Home / 356,026.58-491,312.79-203,060.81

Finding the Fourth Proportional to 356,026.58, 491,312.79 and 203,060.81

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Solution

The fourth proportional to 356,026.58, 491,312.79 and 203,060.81 is: 280,221.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,026.58 : 491,312.79 = 203,060.81 : x
  2. Step 2: Convert to fraction form
    356,026.58/491,312.79 = 203,060.81/x
  3. Step 3: Cross multiply
    356,026.58x = 491,312.79 × 203,060.81
  4. Step 4: Simplify right side
    356,026.58x = 99,766,373,100.76
  5. Step 5: Solve for x
    x = 99,766,373,100.76/356,026.58
  6. Step 6: Final answer
    x = 280,221.70

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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.