Home / 356,380.53-491,805.07-213,140.58

Finding the Fourth Proportional to 356,380.53, 491,805.07 and 213,140.58

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Solution

The fourth proportional to 356,380.53, 491,805.07 and 213,140.58 is: 294,133.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,380.53 : 491,805.07 = 213,140.58 : x
  2. Step 2: Convert to fraction form
    356,380.53/491,805.07 = 213,140.58/x
  3. Step 3: Cross multiply
    356,380.53x = 491,805.07 × 213,140.58
  4. Step 4: Simplify right side
    356,380.53x = 104,823,617,866.74
  5. Step 5: Solve for x
    x = 104,823,617,866.74/356,380.53
  6. Step 6: Final answer
    x = 294,133.96

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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.