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Finding the Fourth Proportional to 440,015.55, 660,023.33 and 300,047.55

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Solution

The fourth proportional to 440,015.55, 660,023.33 and 300,047.55 is: 450,071.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,015.55 : 660,023.33 = 300,047.55 : x
  2. Step 2: Convert to fraction form
    440,015.55/660,023.33 = 300,047.55/x
  3. Step 3: Cross multiply
    440,015.55x = 660,023.33 × 300,047.55
  4. Step 4: Simplify right side
    440,015.55x = 198,038,381,609.10
  5. Step 5: Solve for x
    x = 198,038,381,609.10/440,015.55
  6. Step 6: Final answer
    x = 450,071.33

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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.