Home / 282,156.42-389,383.92-154,840.44

Finding the Fourth Proportional to 282,156.42, 389,383.92 and 154,840.44

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Solution

The fourth proportional to 282,156.42, 389,383.92 and 154,840.44 is: 213,684.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,156.42 : 389,383.92 = 154,840.44 : x
  2. Step 2: Convert to fraction form
    282,156.42/389,383.92 = 154,840.44/x
  3. Step 3: Cross multiply
    282,156.42x = 389,383.92 × 154,840.44
  4. Step 4: Simplify right side
    282,156.42x = 60,292,377,501.72
  5. Step 5: Solve for x
    x = 60,292,377,501.72/282,156.42
  6. Step 6: Final answer
    x = 213,684.23

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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.