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Finding the Fourth Proportional to 284,255.33, 392,305.88 and 163,401.71

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Solution

The fourth proportional to 284,255.33, 392,305.88 and 163,401.71 is: 225,513.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,255.33 : 392,305.88 = 163,401.71 : x
  2. Step 2: Convert to fraction form
    284,255.33/392,305.88 = 163,401.71/x
  3. Step 3: Cross multiply
    284,255.33x = 392,305.88 × 163,401.71
  4. Step 4: Simplify right side
    284,255.33x = 64,103,450,082.03
  5. Step 5: Solve for x
    x = 64,103,450,082.03/284,255.33
  6. Step 6: Final answer
    x = 225,513.63

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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.