Home / 440,137.48-660,372.30-155,816.55

Finding the Fourth Proportional to 440,137.48, 660,372.30 and 155,816.55

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Solution

The fourth proportional to 440,137.48, 660,372.30 and 155,816.55 is: 233,783.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,137.48 : 660,372.30 = 155,816.55 : x
  2. Step 2: Convert to fraction form
    440,137.48/660,372.30 = 155,816.55/x
  3. Step 3: Cross multiply
    440,137.48x = 660,372.30 × 155,816.55
  4. Step 4: Simplify right side
    440,137.48x = 102,896,933,501.57
  5. Step 5: Solve for x
    x = 102,896,933,501.57/440,137.48
  6. Step 6: Final answer
    x = 233,783.62

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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.