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Finding the Fourth Proportional to 280,610.36, 387,249.88 and 167,498.72

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Solution

The fourth proportional to 280,610.36, 387,249.88 and 167,498.72 is: 231,152.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,610.36 : 387,249.88 = 167,498.72 : x
  2. Step 2: Convert to fraction form
    280,610.36/387,249.88 = 167,498.72/x
  3. Step 3: Cross multiply
    280,610.36x = 387,249.88 × 167,498.72
  4. Step 4: Simplify right side
    280,610.36x = 64,863,859,220.15
  5. Step 5: Solve for x
    x = 64,863,859,220.15/280,610.36
  6. Step 6: Final answer
    x = 231,152.76

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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.