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Finding the Fourth Proportional to 356,861.36, 492,474.98 and 195,715

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Solution

The fourth proportional to 356,861.36, 492,474.98 and 195,715 is: 270,090.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,861.36 : 492,474.98 = 195,715 : x
  2. Step 2: Convert to fraction form
    356,861.36/492,474.98 = 195,715/x
  3. Step 3: Cross multiply
    356,861.36x = 492,474.98 × 195,715
  4. Step 4: Simplify right side
    356,861.36x = 96,384,740,710.70
  5. Step 5: Solve for x
    x = 96,384,740,710.70/356,861.36
  6. Step 6: Final answer
    x = 270,090.16

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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.