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Finding the Fourth Proportional to 265,256.40, 397,884.64 and 253,738.24

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Solution

The fourth proportional to 265,256.40, 397,884.64 and 253,738.24 is: 380,607.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,256.40 : 397,884.64 = 253,738.24 : x
  2. Step 2: Convert to fraction form
    265,256.40/397,884.64 = 253,738.24/x
  3. Step 3: Cross multiply
    265,256.40x = 397,884.64 × 253,738.24
  4. Step 4: Simplify right side
    265,256.40x = 100,958,548,276.63
  5. Step 5: Solve for x
    x = 100,958,548,276.63/265,256.40
  6. Step 6: Final answer
    x = 380,607.40

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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.