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Finding the Fourth Proportional to 311,492.36, 429,859.48 and 168,252.41

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Solution

The fourth proportional to 311,492.36, 429,859.48 and 168,252.41 is: 232,188.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,492.36 : 429,859.48 = 168,252.41 : x
  2. Step 2: Convert to fraction form
    311,492.36/429,859.48 = 168,252.41/x
  3. Step 3: Cross multiply
    311,492.36x = 429,859.48 × 168,252.41
  4. Step 4: Simplify right side
    311,492.36x = 72,324,893,471.35
  5. Step 5: Solve for x
    x = 72,324,893,471.35/311,492.36
  6. Step 6: Final answer
    x = 232,188.34

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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.