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Finding the Fourth Proportional to 303,010.30, 454,515.45 and 256,354.30

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Solution

The fourth proportional to 303,010.30, 454,515.45 and 256,354.30 is: 384,531.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,010.30 : 454,515.45 = 256,354.30 : x
  2. Step 2: Convert to fraction form
    303,010.30/454,515.45 = 256,354.30/x
  3. Step 3: Cross multiply
    303,010.30x = 454,515.45 × 256,354.30
  4. Step 4: Simplify right side
    303,010.30x = 116,516,990,023.94
  5. Step 5: Solve for x
    x = 116,516,990,023.94/303,010.30
  6. Step 6: Final answer
    x = 384,531.45

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Similar ratio
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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.