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Finding the Fourth Proportional to 298,777.60, 448,249.68 and 130,312.96

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Solution

The fourth proportional to 298,777.60, 448,249.68 and 130,312.96 is: 195,505.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,777.60 : 448,249.68 = 130,312.96 : x
  2. Step 2: Convert to fraction form
    298,777.60/448,249.68 = 130,312.96/x
  3. Step 3: Cross multiply
    298,777.60x = 448,249.68 × 130,312.96
  4. Step 4: Simplify right side
    298,777.60x = 58,412,742,619.85
  5. Step 5: Solve for x
    x = 58,412,742,619.85/298,777.60
  6. Step 6: Final answer
    x = 195,505.76

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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.