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Finding the Fourth Proportional to 354,795, 489,617.10 and 241,815.12

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Solution

The fourth proportional to 354,795, 489,617.10 and 241,815.12 is: 333,704.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,795 : 489,617.10 = 241,815.12 : x
  2. Step 2: Convert to fraction form
    354,795/489,617.10 = 241,815.12/x
  3. Step 3: Cross multiply
    354,795x = 489,617.10 × 241,815.12
  4. Step 4: Simplify right side
    354,795x = 118,396,817,790.55
  5. Step 5: Solve for x
    x = 118,396,817,790.55/354,795
  6. Step 6: Final answer
    x = 333,704.87

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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.