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Finding the Fourth Proportional to 270,215.40, 404,739.90 and 223,559.40

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Solution

The fourth proportional to 270,215.40, 404,739.90 and 223,559.40 is: 334,856.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,215.40 : 404,739.90 = 223,559.40 : x
  2. Step 2: Convert to fraction form
    270,215.40/404,739.90 = 223,559.40/x
  3. Step 3: Cross multiply
    270,215.40x = 404,739.90 × 223,559.40
  4. Step 4: Simplify right side
    270,215.40x = 90,483,409,200.06
  5. Step 5: Solve for x
    x = 90,483,409,200.06/270,215.40
  6. Step 6: Final answer
    x = 334,856.60

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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.