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Finding the Fourth Proportional to 353,454.32, 529,319.64 and 269,123.60

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Solution

The fourth proportional to 353,454.32, 529,319.64 and 269,123.60 is: 403,029.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,454.32 : 529,319.64 = 269,123.60 : x
  2. Step 2: Convert to fraction form
    353,454.32/529,319.64 = 269,123.60/x
  3. Step 3: Cross multiply
    353,454.32x = 529,319.64 × 269,123.60
  4. Step 4: Simplify right side
    353,454.32x = 142,452,407,067.50
  5. Step 5: Solve for x
    x = 142,452,407,067.50/353,454.32
  6. Step 6: Final answer
    x = 403,029.19

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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.