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Finding the Fourth Proportional to 262,046.40, 393,944.40 and 223,555.20

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Solution

The fourth proportional to 262,046.40, 393,944.40 and 223,555.20 is: 336,079.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,046.40 : 393,944.40 = 223,555.20 : x
  2. Step 2: Convert to fraction form
    262,046.40/393,944.40 = 223,555.20/x
  3. Step 3: Cross multiply
    262,046.40x = 393,944.40 × 223,555.20
  4. Step 4: Simplify right side
    262,046.40x = 88,068,319,130.88
  5. Step 5: Solve for x
    x = 88,068,319,130.88/262,046.40
  6. Step 6: Final answer
    x = 336,079.10

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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.