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Finding the Fourth Proportional to 320,751.58, 480,809.85 and 151,973.50

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Solution

The fourth proportional to 320,751.58, 480,809.85 and 151,973.50 is: 227,809.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,751.58 : 480,809.85 = 151,973.50 : x
  2. Step 2: Convert to fraction form
    320,751.58/480,809.85 = 151,973.50/x
  3. Step 3: Cross multiply
    320,751.58x = 480,809.85 × 151,973.50
  4. Step 4: Simplify right side
    320,751.58x = 73,070,355,738.98
  5. Step 5: Solve for x
    x = 73,070,355,738.98/320,751.58
  6. Step 6: Final answer
    x = 227,809.81

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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.