Home / 285,153.12-393,560.10-164,272.77

Finding the Fourth Proportional to 285,153.12, 393,560.10 and 164,272.77

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Solution

The fourth proportional to 285,153.12, 393,560.10 and 164,272.77 is: 226,724.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,153.12 : 393,560.10 = 164,272.77 : x
  2. Step 2: Convert to fraction form
    285,153.12/393,560.10 = 164,272.77/x
  3. Step 3: Cross multiply
    285,153.12x = 393,560.10 × 164,272.77
  4. Step 4: Simplify right side
    285,153.12x = 64,651,207,788.48
  5. Step 5: Solve for x
    x = 64,651,207,788.48/285,153.12
  6. Step 6: Final answer
    x = 226,724.53

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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.