Home / 282,241.10-389,491.35-154,918.86

Finding the Fourth Proportional to 282,241.10, 389,491.35 and 154,918.86

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Solution

The fourth proportional to 282,241.10, 389,491.35 and 154,918.86 is: 213,787.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,241.10 : 389,491.35 = 154,918.86 : x
  2. Step 2: Convert to fraction form
    282,241.10/389,491.35 = 154,918.86/x
  3. Step 3: Cross multiply
    282,241.10x = 389,491.35 × 154,918.86
  4. Step 4: Simplify right side
    282,241.10x = 60,339,555,921.86
  5. Step 5: Solve for x
    x = 60,339,555,921.86/282,241.10
  6. Step 6: Final answer
    x = 213,787.28

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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.