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Finding the Fourth Proportional to 311,343.84, 429,665.04 and 184,128.48

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Solution

The fourth proportional to 311,343.84, 429,665.04 and 184,128.48 is: 254,103.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,343.84 : 429,665.04 = 184,128.48 : x
  2. Step 2: Convert to fraction form
    311,343.84/429,665.04 = 184,128.48/x
  3. Step 3: Cross multiply
    311,343.84x = 429,665.04 × 184,128.48
  4. Step 4: Simplify right side
    311,343.84x = 79,113,570,724.34
  5. Step 5: Solve for x
    x = 79,113,570,724.34/311,343.84
  6. Step 6: Final answer
    x = 254,103.54

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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.