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Finding the Fourth Proportional to 356,546.40, 492,047.70 and 203,609.52

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Solution

The fourth proportional to 356,546.40, 492,047.70 and 203,609.52 is: 280,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,546.40 : 492,047.70 = 203,609.52 : x
  2. Step 2: Convert to fraction form
    356,546.40/492,047.70 = 203,609.52/x
  3. Step 3: Cross multiply
    356,546.40x = 492,047.70 × 203,609.52
  4. Step 4: Simplify right side
    356,546.40x = 100,185,596,014.10
  5. Step 5: Solve for x
    x = 100,185,596,014.10/356,546.40
  6. Step 6: Final answer
    x = 280,988.94

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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.