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Finding the Fourth Proportional to 298,778.12, 448,299.56 and 156,589.56

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Solution

The fourth proportional to 298,778.12, 448,299.56 and 156,589.56 is: 234,953.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,778.12 : 448,299.56 = 156,589.56 : x
  2. Step 2: Convert to fraction form
    298,778.12/448,299.56 = 156,589.56/x
  3. Step 3: Cross multiply
    298,778.12x = 448,299.56 × 156,589.56
  4. Step 4: Simplify right side
    298,778.12x = 70,199,030,848.59
  5. Step 5: Solve for x
    x = 70,199,030,848.59/298,778.12
  6. Step 6: Final answer
    x = 234,953.72

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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.