Home / 438,784.12-658,419.04-214,146.41

Finding the Fourth Proportional to 438,784.12, 658,419.04 and 214,146.41

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Solution

The fourth proportional to 438,784.12, 658,419.04 and 214,146.41 is: 321,338.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,784.12 : 658,419.04 = 214,146.41 : x
  2. Step 2: Convert to fraction form
    438,784.12/658,419.04 = 214,146.41/x
  3. Step 3: Cross multiply
    438,784.12x = 658,419.04 × 214,146.41
  4. Step 4: Simplify right side
    438,784.12x = 140,998,075,873.06
  5. Step 5: Solve for x
    x = 140,998,075,873.06/438,784.12
  6. Step 6: Final answer
    x = 321,338.15

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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.