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Finding the Fourth Proportional to 179,861.41, 247,978.15 and 147,476.80

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Solution

The fourth proportional to 179,861.41, 247,978.15 and 147,476.80 is: 203,328.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,861.41 : 247,978.15 = 147,476.80 : x
  2. Step 2: Convert to fraction form
    179,861.41/247,978.15 = 147,476.80/x
  3. Step 3: Cross multiply
    179,861.41x = 247,978.15 × 147,476.80
  4. Step 4: Simplify right side
    179,861.41x = 36,571,024,031.92
  5. Step 5: Solve for x
    x = 36,571,024,031.92/179,861.41
  6. Step 6: Final answer
    x = 203,328.91

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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.