Home / 356,345.58-491,757-195,206.40

Finding the Fourth Proportional to 356,345.58, 491,757 and 195,206.40

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Solution

The fourth proportional to 356,345.58, 491,757 and 195,206.40 is: 269,384.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,345.58 : 491,757 = 195,206.40 : x
  2. Step 2: Convert to fraction form
    356,345.58/491,757 = 195,206.40/x
  3. Step 3: Cross multiply
    356,345.58x = 491,757 × 195,206.40
  4. Step 4: Simplify right side
    356,345.58x = 95,994,113,644.80
  5. Step 5: Solve for x
    x = 95,994,113,644.80/356,345.58
  6. Step 6: Final answer
    x = 269,384.89

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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.