Home / 280,593.45-387,212.67-153,269.55

Finding the Fourth Proportional to 280,593.45, 387,212.67 and 153,269.55

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Solution

The fourth proportional to 280,593.45, 387,212.67 and 153,269.55 is: 211,508.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,593.45 : 387,212.67 = 153,269.55 : x
  2. Step 2: Convert to fraction form
    280,593.45/387,212.67 = 153,269.55/x
  3. Step 3: Cross multiply
    280,593.45x = 387,212.67 × 153,269.55
  4. Step 4: Simplify right side
    280,593.45x = 59,347,911,685.20
  5. Step 5: Solve for x
    x = 59,347,911,685.20/280,593.45
  6. Step 6: Final answer
    x = 211,508.54

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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.