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Finding the Fourth Proportional to 320,335, 441,516.44 and 293,185.72

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Solution

The fourth proportional to 320,335, 441,516.44 and 293,185.72 is: 404,096.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,335 : 441,516.44 = 293,185.72 : x
  2. Step 2: Convert to fraction form
    320,335/441,516.44 = 293,185.72/x
  3. Step 3: Cross multiply
    320,335x = 441,516.44 × 293,185.72
  4. Step 4: Simplify right side
    320,335x = 129,446,315,353.24
  5. Step 5: Solve for x
    x = 129,446,315,353.24/320,335
  6. Step 6: Final answer
    x = 404,096.70

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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.