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Finding the Fourth Proportional to 393,265.44, 542,752.56 and 223,525.44

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Solution

The fourth proportional to 393,265.44, 542,752.56 and 223,525.44 is: 308,491.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    393,265.44 : 542,752.56 = 223,525.44 : x
  2. Step 2: Convert to fraction form
    393,265.44/542,752.56 = 223,525.44/x
  3. Step 3: Cross multiply
    393,265.44x = 542,752.56 × 223,525.44
  4. Step 4: Simplify right side
    393,265.44x = 121,319,004,785.13
  5. Step 5: Solve for x
    x = 121,319,004,785.13/393,265.44
  6. Step 6: Final answer
    x = 308,491.40

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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.