Home / 356,936.68-492,490.02-213,642.28

Finding the Fourth Proportional to 356,936.68, 492,490.02 and 213,642.28

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Solution

The fourth proportional to 356,936.68, 492,490.02 and 213,642.28 is: 294,776.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,936.68 : 492,490.02 = 213,642.28 : x
  2. Step 2: Convert to fraction form
    356,936.68/492,490.02 = 213,642.28/x
  3. Step 3: Cross multiply
    356,936.68x = 492,490.02 × 213,642.28
  4. Step 4: Simplify right side
    356,936.68x = 105,216,690,750.05
  5. Step 5: Solve for x
    x = 105,216,690,750.05/356,936.68
  6. Step 6: Final answer
    x = 294,776.91

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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.