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Finding the Fourth Proportional to 451,502.75, 623,171 and 270,255.13

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Solution

The fourth proportional to 451,502.75, 623,171 and 270,255.13 is: 373,010.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,502.75 : 623,171 = 270,255.13 : x
  2. Step 2: Convert to fraction form
    451,502.75/623,171 = 270,255.13/x
  3. Step 3: Cross multiply
    451,502.75x = 623,171 × 270,255.13
  4. Step 4: Simplify right side
    451,502.75x = 168,415,159,617.23
  5. Step 5: Solve for x
    x = 168,415,159,617.23/451,502.75
  6. Step 6: Final answer
    x = 373,010.26

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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.