Home / 438,732.23-658,015.12-213,866.51

Finding the Fourth Proportional to 438,732.23, 658,015.12 and 213,866.51

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Solution

The fourth proportional to 438,732.23, 658,015.12 and 213,866.51 is: 320,759.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,732.23 : 658,015.12 = 213,866.51 : x
  2. Step 2: Convert to fraction form
    438,732.23/658,015.12 = 213,866.51/x
  3. Step 3: Cross multiply
    438,732.23x = 658,015.12 × 213,866.51
  4. Step 4: Simplify right side
    438,732.23x = 140,727,395,254.04
  5. Step 5: Solve for x
    x = 140,727,395,254.04/438,732.23
  6. Step 6: Final answer
    x = 320,759.19

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.