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Finding the Fourth Proportional to 309,570.60, 426,628.96 and 241,479.72

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Solution

The fourth proportional to 309,570.60, 426,628.96 and 241,479.72 is: 332,790.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,570.60 : 426,628.96 = 241,479.72 : x
  2. Step 2: Convert to fraction form
    309,570.60/426,628.96 = 241,479.72/x
  3. Step 3: Cross multiply
    309,570.60x = 426,628.96 × 241,479.72
  4. Step 4: Simplify right side
    309,570.60x = 103,022,241,804.69
  5. Step 5: Solve for x
    x = 103,022,241,804.69/309,570.60
  6. Step 6: Final answer
    x = 332,790.78

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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.