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Finding the Fourth Proportional to 425,707.20, 638,809.32 and 236,327.04

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Solution

The fourth proportional to 425,707.20, 638,809.32 and 236,327.04 is: 354,628.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,707.20 : 638,809.32 = 236,327.04 : x
  2. Step 2: Convert to fraction form
    425,707.20/638,809.32 = 236,327.04/x
  3. Step 3: Cross multiply
    425,707.20x = 638,809.32 × 236,327.04
  4. Step 4: Simplify right side
    425,707.20x = 150,967,915,720.01
  5. Step 5: Solve for x
    x = 150,967,915,720.01/425,707.20
  6. Step 6: Final answer
    x = 354,628.52

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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.