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Finding the Fourth Proportional to 320,900.81, 481,362.38 and 152,334.30

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Solution

The fourth proportional to 320,900.81, 481,362.38 and 152,334.30 is: 228,506.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,900.81 : 481,362.38 = 152,334.30 : x
  2. Step 2: Convert to fraction form
    320,900.81/481,362.38 = 152,334.30/x
  3. Step 3: Cross multiply
    320,900.81x = 481,362.38 × 152,334.30
  4. Step 4: Simplify right side
    320,900.81x = 73,328,000,441.96
  5. Step 5: Solve for x
    x = 73,328,000,441.96/320,900.81
  6. Step 6: Final answer
    x = 228,506.75

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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.