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Finding the Fourth Proportional to 324,671.22, 487,105.38 and 156,143.72

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Solution

The fourth proportional to 324,671.22, 487,105.38 and 156,143.72 is: 234,262.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,671.22 : 487,105.38 = 156,143.72 : x
  2. Step 2: Convert to fraction form
    324,671.22/487,105.38 = 156,143.72/x
  3. Step 3: Cross multiply
    324,671.22x = 487,105.38 × 156,143.72
  4. Step 4: Simplify right side
    324,671.22x = 76,058,447,282.98
  5. Step 5: Solve for x
    x = 76,058,447,282.98/324,671.22
  6. Step 6: Final answer
    x = 234,262.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.