Home / 278,877.51-384,853.41-151,553.10

Finding the Fourth Proportional to 278,877.51, 384,853.41 and 151,553.10

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Solution

The fourth proportional to 278,877.51, 384,853.41 and 151,553.10 is: 209,144.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,877.51 : 384,853.41 = 151,553.10 : x
  2. Step 2: Convert to fraction form
    278,877.51/384,853.41 = 151,553.10/x
  3. Step 3: Cross multiply
    278,877.51x = 384,853.41 × 151,553.10
  4. Step 4: Simplify right side
    278,877.51x = 58,325,727,331.07
  5. Step 5: Solve for x
    x = 58,325,727,331.07/278,877.51
  6. Step 6: Final answer
    x = 209,144.61

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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.