Home / 356,128.98-491,439.32-194,953.16

Finding the Fourth Proportional to 356,128.98, 491,439.32 and 194,953.16

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Solution

The fourth proportional to 356,128.98, 491,439.32 and 194,953.16 is: 269,025.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,128.98 : 491,439.32 = 194,953.16 : x
  2. Step 2: Convert to fraction form
    356,128.98/491,439.32 = 194,953.16/x
  3. Step 3: Cross multiply
    356,128.98x = 491,439.32 × 194,953.16
  4. Step 4: Simplify right side
    356,128.98x = 95,807,648,382.25
  5. Step 5: Solve for x
    x = 95,807,648,382.25/356,128.98
  6. Step 6: Final answer
    x = 269,025.14

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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.