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Finding the Fourth Proportional to 445,971.80, 669,142.38 and 246,274.40

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Solution

The fourth proportional to 445,971.80, 669,142.38 and 246,274.40 is: 369,513.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,971.80 : 669,142.38 = 246,274.40 : x
  2. Step 2: Convert to fraction form
    445,971.80/669,142.38 = 246,274.40/x
  3. Step 3: Cross multiply
    445,971.80x = 669,142.38 × 246,274.40
  4. Step 4: Simplify right side
    445,971.80x = 164,792,638,149.07
  5. Step 5: Solve for x
    x = 164,792,638,149.07/445,971.80
  6. Step 6: Final answer
    x = 369,513.58

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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.