Home / 356,376.15-491,799.06-213,136.19

Finding the Fourth Proportional to 356,376.15, 491,799.06 and 213,136.19

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Solution

The fourth proportional to 356,376.15, 491,799.06 and 213,136.19 is: 294,127.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,376.15 : 491,799.06 = 213,136.19 : x
  2. Step 2: Convert to fraction form
    356,376.15/491,799.06 = 213,136.19/x
  3. Step 3: Cross multiply
    356,376.15x = 491,799.06 × 213,136.19
  4. Step 4: Simplify right side
    356,376.15x = 104,820,177,279.23
  5. Step 5: Solve for x
    x = 104,820,177,279.23/356,376.15
  6. Step 6: Final answer
    x = 294,127.92

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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.