Home / 285,146.35-393,589.60-164,368.37

Finding the Fourth Proportional to 285,146.35, 393,589.60 and 164,368.37

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Solution

The fourth proportional to 285,146.35, 393,589.60 and 164,368.37 is: 226,878.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,146.35 : 393,589.60 = 164,368.37 : x
  2. Step 2: Convert to fraction form
    285,146.35/393,589.60 = 164,368.37/x
  3. Step 3: Cross multiply
    285,146.35x = 393,589.60 × 164,368.37
  4. Step 4: Simplify right side
    285,146.35x = 64,693,681,574.01
  5. Step 5: Solve for x
    x = 64,693,681,574.01/285,146.35
  6. Step 6: Final answer
    x = 226,878.87

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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.