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Finding the Fourth Proportional to 356,897.34, 492,543.39 and 203,958.14

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Solution

The fourth proportional to 356,897.34, 492,543.39 and 203,958.14 is: 281,476.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,897.34 : 492,543.39 = 203,958.14 : x
  2. Step 2: Convert to fraction form
    356,897.34/492,543.39 = 203,958.14/x
  3. Step 3: Cross multiply
    356,897.34x = 492,543.39 × 203,958.14
  4. Step 4: Simplify right side
    356,897.34x = 100,458,231,230.98
  5. Step 5: Solve for x
    x = 100,458,231,230.98/356,897.34
  6. Step 6: Final answer
    x = 281,476.55

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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.