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Finding the Fourth Proportional to 354,792, 489,612.96 and 241,812.12

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Solution

The fourth proportional to 354,792, 489,612.96 and 241,812.12 is: 333,700.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,792 : 489,612.96 = 241,812.12 : x
  2. Step 2: Convert to fraction form
    354,792/489,612.96 = 241,812.12/x
  3. Step 3: Cross multiply
    354,792x = 489,612.96 × 241,812.12
  4. Step 4: Simplify right side
    354,792x = 118,394,347,837.08
  5. Step 5: Solve for x
    x = 118,394,347,837.08/354,792
  6. Step 6: Final answer
    x = 333,700.73

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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.