Home / 281,090.88-387,904.92-153,766.56

Finding the Fourth Proportional to 281,090.88, 387,904.92 and 153,766.56

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Solution

The fourth proportional to 281,090.88, 387,904.92 and 153,766.56 is: 212,197.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,090.88 : 387,904.92 = 153,766.56 : x
  2. Step 2: Convert to fraction form
    281,090.88/387,904.92 = 153,766.56/x
  3. Step 3: Cross multiply
    281,090.88x = 387,904.92 × 153,766.56
  4. Step 4: Simplify right side
    281,090.88x = 59,646,805,155.48
  5. Step 5: Solve for x
    x = 59,646,805,155.48/281,090.88
  6. Step 6: Final answer
    x = 212,197.58

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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.