Home / 280,788.52-387,485.94-158,269.72

Finding the Fourth Proportional to 280,788.52, 387,485.94 and 158,269.72

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Solution

The fourth proportional to 280,788.52, 387,485.94 and 158,269.72 is: 218,410.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,788.52 : 387,485.94 = 158,269.72 : x
  2. Step 2: Convert to fraction form
    280,788.52/387,485.94 = 158,269.72/x
  3. Step 3: Cross multiply
    280,788.52x = 387,485.94 × 158,269.72
  4. Step 4: Simplify right side
    280,788.52x = 61,327,291,227.74
  5. Step 5: Solve for x
    x = 61,327,291,227.74/280,788.52
  6. Step 6: Final answer
    x = 218,410.96

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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.