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Finding the Fourth Proportional to 328,896.60, 493,344.90 and 92,279.40

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Solution

The fourth proportional to 328,896.60, 493,344.90 and 92,279.40 is: 138,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,896.60 : 493,344.90 = 92,279.40 : x
  2. Step 2: Convert to fraction form
    328,896.60/493,344.90 = 92,279.40/x
  3. Step 3: Cross multiply
    328,896.60x = 493,344.90 × 92,279.40
  4. Step 4: Simplify right side
    328,896.60x = 45,525,571,365.06
  5. Step 5: Solve for x
    x = 45,525,571,365.06/328,896.60
  6. Step 6: Final answer
    x = 138,419.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.