Home / 281,988.12-389,134.08-167,334.84

Finding the Fourth Proportional to 281,988.12, 389,134.08 and 167,334.84

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Solution

The fourth proportional to 281,988.12, 389,134.08 and 167,334.84 is: 230,916.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,988.12 : 389,134.08 = 167,334.84 : x
  2. Step 2: Convert to fraction form
    281,988.12/389,134.08 = 167,334.84/x
  3. Step 3: Cross multiply
    281,988.12x = 389,134.08 × 167,334.84
  4. Step 4: Simplify right side
    281,988.12x = 65,115,689,015.35
  5. Step 5: Solve for x
    x = 65,115,689,015.35/281,988.12
  6. Step 6: Final answer
    x = 230,916.43

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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.