Home / 285,279.40-393,588.66-164,416.84

Finding the Fourth Proportional to 285,279.40, 393,588.66 and 164,416.84

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Solution

The fourth proportional to 285,279.40, 393,588.66 and 164,416.84 is: 226,839.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,279.40 : 393,588.66 = 164,416.84 : x
  2. Step 2: Convert to fraction form
    285,279.40/393,588.66 = 164,416.84/x
  3. Step 3: Cross multiply
    285,279.40x = 393,588.66 × 164,416.84
  4. Step 4: Simplify right side
    285,279.40x = 64,712,603,737.03
  5. Step 5: Solve for x
    x = 64,712,603,737.03/285,279.40
  6. Step 6: Final answer
    x = 226,839.39

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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.