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Finding the Fourth Proportional to 356,465.88, 491,904.18 and 203,498.04

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Solution

The fourth proportional to 356,465.88, 491,904.18 and 203,498.04 is: 280,816.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,465.88 : 491,904.18 = 203,498.04 : x
  2. Step 2: Convert to fraction form
    356,465.88/491,904.18 = 203,498.04/x
  3. Step 3: Cross multiply
    356,465.88x = 491,904.18 × 203,498.04
  4. Step 4: Simplify right side
    356,465.88x = 100,101,536,497.81
  5. Step 5: Solve for x
    x = 100,101,536,497.81/356,465.88
  6. Step 6: Final answer
    x = 280,816.60

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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.