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Finding the Fourth Proportional to 285,173.34, 393,504.66 and 164,353.74

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Solution

The fourth proportional to 285,173.34, 393,504.66 and 164,353.74 is: 226,788.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,173.34 : 393,504.66 = 164,353.74 : x
  2. Step 2: Convert to fraction form
    285,173.34/393,504.66 = 164,353.74/x
  3. Step 3: Cross multiply
    285,173.34x = 393,504.66 × 164,353.74
  4. Step 4: Simplify right side
    285,173.34x = 64,673,962,578.43
  5. Step 5: Solve for x
    x = 64,673,962,578.43/285,173.34
  6. Step 6: Final answer
    x = 226,788.25

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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.