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Finding the Fourth Proportional to 336,652.72, 464,853.72 and 321,431.20

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Solution

The fourth proportional to 336,652.72, 464,853.72 and 321,431.20 is: 443,835.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,652.72 : 464,853.72 = 321,431.20 : x
  2. Step 2: Convert to fraction form
    336,652.72/464,853.72 = 321,431.20/x
  3. Step 3: Cross multiply
    336,652.72x = 464,853.72 × 321,431.20
  4. Step 4: Simplify right side
    336,652.72x = 149,418,489,044.06
  5. Step 5: Solve for x
    x = 149,418,489,044.06/336,652.72
  6. Step 6: Final answer
    x = 443,835.68

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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.