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Finding the Fourth Proportional to 356,709.40, 492,245.90 and 195,560.91

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Solution

The fourth proportional to 356,709.40, 492,245.90 and 195,560.91 is: 269,866.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,709.40 : 492,245.90 = 195,560.91 : x
  2. Step 2: Convert to fraction form
    356,709.40/492,245.90 = 195,560.91/x
  3. Step 3: Cross multiply
    356,709.40x = 492,245.90 × 195,560.91
  4. Step 4: Simplify right side
    356,709.40x = 96,264,056,147.77
  5. Step 5: Solve for x
    x = 96,264,056,147.77/356,709.40
  6. Step 6: Final answer
    x = 269,866.89

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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.