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Finding the Fourth Proportional to 328,418.56, 453,264.64 and 238,073.60

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Solution

The fourth proportional to 328,418.56, 453,264.64 and 238,073.60 is: 328,575.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,418.56 : 453,264.64 = 238,073.60 : x
  2. Step 2: Convert to fraction form
    328,418.56/453,264.64 = 238,073.60/x
  3. Step 3: Cross multiply
    328,418.56x = 453,264.64 × 238,073.60
  4. Step 4: Simplify right side
    328,418.56x = 107,910,344,597.50
  5. Step 5: Solve for x
    x = 107,910,344,597.50/328,418.56
  6. Step 6: Final answer
    x = 328,575.66

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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.