Home / 254,637.96-381,583.08-128,104.28

Finding the Fourth Proportional to 254,637.96, 381,583.08 and 128,104.28

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Solution

The fourth proportional to 254,637.96, 381,583.08 and 128,104.28 is: 191,968.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,637.96 : 381,583.08 = 128,104.28 : x
  2. Step 2: Convert to fraction form
    254,637.96/381,583.08 = 128,104.28/x
  3. Step 3: Cross multiply
    254,637.96x = 381,583.08 × 128,104.28
  4. Step 4: Simplify right side
    254,637.96x = 48,882,425,723.58
  5. Step 5: Solve for x
    x = 48,882,425,723.58/254,637.96
  6. Step 6: Final answer
    x = 191,968.34

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1.5x scale

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.