Home / 278,669.35-384,587.41-157,832.13

Finding the Fourth Proportional to 278,669.35, 384,587.41 and 157,832.13

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Solution

The fourth proportional to 278,669.35, 384,587.41 and 157,832.13 is: 217,821.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,669.35 : 384,587.41 = 157,832.13 : x
  2. Step 2: Convert to fraction form
    278,669.35/384,587.41 = 157,832.13/x
  3. Step 3: Cross multiply
    278,669.35x = 384,587.41 × 157,832.13
  4. Step 4: Simplify right side
    278,669.35x = 60,700,250,091.48
  5. Step 5: Solve for x
    x = 60,700,250,091.48/278,669.35
  6. Step 6: Final answer
    x = 217,821.77

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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.