Home / 311,407.32-429,742.09-168,167.36

Finding the Fourth Proportional to 311,407.32, 429,742.09 and 168,167.36

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Solution

The fourth proportional to 311,407.32, 429,742.09 and 168,167.36 is: 232,070.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,407.32 : 429,742.09 = 168,167.36 : x
  2. Step 2: Convert to fraction form
    311,407.32/429,742.09 = 168,167.36/x
  3. Step 3: Cross multiply
    311,407.32x = 429,742.09 × 168,167.36
  4. Step 4: Simplify right side
    311,407.32x = 72,268,591,623.45
  5. Step 5: Solve for x
    x = 72,268,591,623.45/311,407.32
  6. Step 6: Final answer
    x = 232,070.95

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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.