Home / 280,161.86-386,629.50-152,837.35

Finding the Fourth Proportional to 280,161.86, 386,629.50 and 152,837.35

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Solution

The fourth proportional to 280,161.86, 386,629.50 and 152,837.35 is: 210,918.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,161.86 : 386,629.50 = 152,837.35 : x
  2. Step 2: Convert to fraction form
    280,161.86/386,629.50 = 152,837.35/x
  3. Step 3: Cross multiply
    280,161.86x = 386,629.50 × 152,837.35
  4. Step 4: Simplify right side
    280,161.86x = 59,091,425,514.49
  5. Step 5: Solve for x
    x = 59,091,425,514.49/280,161.86
  6. Step 6: Final answer
    x = 210,918.88

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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.