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Finding the Fourth Proportional to 311,341.84, 429,662.28 and 184,126.48

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Solution

The fourth proportional to 311,341.84, 429,662.28 and 184,126.48 is: 254,100.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,341.84 : 429,662.28 = 184,126.48 : x
  2. Step 2: Convert to fraction form
    311,341.84/429,662.28 = 184,126.48/x
  3. Step 3: Cross multiply
    311,341.84x = 429,662.28 × 184,126.48
  4. Step 4: Simplify right side
    311,341.84x = 79,112,203,205.17
  5. Step 5: Solve for x
    x = 79,112,203,205.17/311,341.84
  6. Step 6: Final answer
    x = 254,100.78

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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.