Home / 438,904.80-658,357.20-158,431.20

Finding the Fourth Proportional to 438,904.80, 658,357.20 and 158,431.20

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Solution

The fourth proportional to 438,904.80, 658,357.20 and 158,431.20 is: 237,646.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,904.80 : 658,357.20 = 158,431.20 : x
  2. Step 2: Convert to fraction form
    438,904.80/658,357.20 = 158,431.20/x
  3. Step 3: Cross multiply
    438,904.80x = 658,357.20 × 158,431.20
  4. Step 4: Simplify right side
    438,904.80x = 104,304,321,224.64
  5. Step 5: Solve for x
    x = 104,304,321,224.64/438,904.80
  6. Step 6: Final answer
    x = 237,646.80

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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.