Home / 440,430.45-660,636.78-140,911.02

Finding the Fourth Proportional to 440,430.45, 660,636.78 and 140,911.02

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Solution

The fourth proportional to 440,430.45, 660,636.78 and 140,911.02 is: 211,363.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,430.45 : 660,636.78 = 140,911.02 : x
  2. Step 2: Convert to fraction form
    440,430.45/660,636.78 = 140,911.02/x
  3. Step 3: Cross multiply
    440,430.45x = 660,636.78 × 140,911.02
  4. Step 4: Simplify right side
    440,430.45x = 93,091,002,519.32
  5. Step 5: Solve for x
    x = 93,091,002,519.32/440,430.45
  6. Step 6: Final answer
    x = 211,363.68

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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.