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Finding the Fourth Proportional to 269,928.40, 404,309.40 and 223,272.40

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Solution

The fourth proportional to 269,928.40, 404,309.40 and 223,272.40 is: 334,426.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,928.40 : 404,309.40 = 223,272.40 : x
  2. Step 2: Convert to fraction form
    269,928.40/404,309.40 = 223,272.40/x
  3. Step 3: Cross multiply
    269,928.40x = 404,309.40 × 223,272.40
  4. Step 4: Simplify right side
    269,928.40x = 90,271,130,080.56
  5. Step 5: Solve for x
    x = 90,271,130,080.56/269,928.40
  6. Step 6: Final answer
    x = 334,426.20

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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.