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Finding the Fourth Proportional to 187,313.70, 280,970.55 and 108,630.30

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Solution

The fourth proportional to 187,313.70, 280,970.55 and 108,630.30 is: 162,945.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,313.70 : 280,970.55 = 108,630.30 : x
  2. Step 2: Convert to fraction form
    187,313.70/280,970.55 = 108,630.30/x
  3. Step 3: Cross multiply
    187,313.70x = 280,970.55 × 108,630.30
  4. Step 4: Simplify right side
    187,313.70x = 30,521,915,137.67
  5. Step 5: Solve for x
    x = 30,521,915,137.67/187,313.70
  6. Step 6: Final answer
    x = 162,945.45

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Similar ratio
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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.