Home / 281,066.88-387,867.24-153,741.36

Finding the Fourth Proportional to 281,066.88, 387,867.24 and 153,741.36

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Solution

The fourth proportional to 281,066.88, 387,867.24 and 153,741.36 is: 212,160.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,066.88 : 387,867.24 = 153,741.36 : x
  2. Step 2: Convert to fraction form
    281,066.88/387,867.24 = 153,741.36/x
  3. Step 3: Cross multiply
    281,066.88x = 387,867.24 × 153,741.36
  4. Step 4: Simplify right side
    281,066.88x = 59,631,236,977.05
  5. Step 5: Solve for x
    x = 59,631,236,977.05/281,066.88
  6. Step 6: Final answer
    x = 212,160.31

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1.5x scale

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.