Home / 438,685.47-658,028.21-158,202.72

Finding the Fourth Proportional to 438,685.47, 658,028.21 and 158,202.72

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Solution

The fourth proportional to 438,685.47, 658,028.21 and 158,202.72 is: 237,304.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,685.47 : 658,028.21 = 158,202.72 : x
  2. Step 2: Convert to fraction form
    438,685.47/658,028.21 = 158,202.72/x
  3. Step 3: Cross multiply
    438,685.47x = 658,028.21 × 158,202.72
  4. Step 4: Simplify right side
    438,685.47x = 104,101,851,867.72
  5. Step 5: Solve for x
    x = 104,101,851,867.72/438,685.47
  6. Step 6: Final answer
    x = 237,304.08

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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.