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Finding the Fourth Proportional to 356,312.02, 491,710.80 and 195,169.77

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Solution

The fourth proportional to 356,312.02, 491,710.80 and 195,169.77 is: 269,334.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,312.02 : 491,710.80 = 195,169.77 : x
  2. Step 2: Convert to fraction form
    356,312.02/491,710.80 = 195,169.77/x
  3. Step 3: Cross multiply
    356,312.02x = 491,710.80 × 195,169.77
  4. Step 4: Simplify right side
    356,312.02x = 95,967,081,283.96
  5. Step 5: Solve for x
    x = 95,967,081,283.96/356,312.02
  6. Step 6: Final answer
    x = 269,334.39

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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.