Home / 278,563.51-384,426.84-157,702.33

Finding the Fourth Proportional to 278,563.51, 384,426.84 and 157,702.33

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Solution

The fourth proportional to 278,563.51, 384,426.84 and 157,702.33 is: 217,634.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,563.51 : 384,426.84 = 157,702.33 : x
  2. Step 2: Convert to fraction form
    278,563.51/384,426.84 = 157,702.33/x
  3. Step 3: Cross multiply
    278,563.51x = 384,426.84 × 157,702.33
  4. Step 4: Simplify right side
    278,563.51x = 60,625,008,382.54
  5. Step 5: Solve for x
    x = 60,625,008,382.54/278,563.51
  6. Step 6: Final answer
    x = 217,634.42

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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.