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Finding the Fourth Proportional to 303,027.57, 417,878.43 and 257,212.32

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Solution

The fourth proportional to 303,027.57, 417,878.43 and 257,212.32 is: 354,698.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,027.57 : 417,878.43 = 257,212.32 : x
  2. Step 2: Convert to fraction form
    303,027.57/417,878.43 = 257,212.32/x
  3. Step 3: Cross multiply
    303,027.57x = 417,878.43 × 257,212.32
  4. Step 4: Simplify right side
    303,027.57x = 107,483,480,458.26
  5. Step 5: Solve for x
    x = 107,483,480,458.26/303,027.57
  6. Step 6: Final answer
    x = 354,698.68

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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.