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Finding the Fourth Proportional to 440,460.36, 660,789 and 140,958.90

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Solution

The fourth proportional to 440,460.36, 660,789 and 140,958.90 is: 211,469.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,460.36 : 660,789 = 140,958.90 : x
  2. Step 2: Convert to fraction form
    440,460.36/660,789 = 140,958.90/x
  3. Step 3: Cross multiply
    440,460.36x = 660,789 × 140,958.90
  4. Step 4: Simplify right side
    440,460.36x = 93,144,090,572.10
  5. Step 5: Solve for x
    x = 93,144,090,572.10/440,460.36
  6. Step 6: Final answer
    x = 211,469.86

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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.