Home / 356,899.33-492,351.31-213,631.70

Finding the Fourth Proportional to 356,899.33, 492,351.31 and 213,631.70

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Solution

The fourth proportional to 356,899.33, 492,351.31 and 213,631.70 is: 294,710.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,899.33 : 492,351.31 = 213,631.70 : x
  2. Step 2: Convert to fraction form
    356,899.33/492,351.31 = 213,631.70/x
  3. Step 3: Cross multiply
    356,899.33x = 492,351.31 × 213,631.70
  4. Step 4: Simplify right side
    356,899.33x = 105,181,845,157.81
  5. Step 5: Solve for x
    x = 105,181,845,157.81/356,899.33
  6. Step 6: Final answer
    x = 294,710.12

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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.