Home / 356,439.82-491,886.80-213,233.50

Finding the Fourth Proportional to 356,439.82, 491,886.80 and 213,233.50

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Solution

The fourth proportional to 356,439.82, 491,886.80 and 213,233.50 is: 294,262.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,439.82 : 491,886.80 = 213,233.50 : x
  2. Step 2: Convert to fraction form
    356,439.82/491,886.80 = 213,233.50/x
  3. Step 3: Cross multiply
    356,439.82x = 491,886.80 × 213,233.50
  4. Step 4: Simplify right side
    356,439.82x = 104,886,743,967.80
  5. Step 5: Solve for x
    x = 104,886,743,967.80/356,439.82
  6. Step 6: Final answer
    x = 294,262.14

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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.