Home / 282,360.74-389,658.39-153,299.36

Finding the Fourth Proportional to 282,360.74, 389,658.39 and 153,299.36

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Solution

The fourth proportional to 282,360.74, 389,658.39 and 153,299.36 is: 211,553.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,360.74 : 389,658.39 = 153,299.36 : x
  2. Step 2: Convert to fraction form
    282,360.74/389,658.39 = 153,299.36/x
  3. Step 3: Cross multiply
    282,360.74x = 389,658.39 × 153,299.36
  4. Step 4: Simplify right side
    282,360.74x = 59,734,379,857.34
  5. Step 5: Solve for x
    x = 59,734,379,857.34/282,360.74
  6. Step 6: Final answer
    x = 211,553.42

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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.