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Finding the Fourth Proportional to 320,166.99, 480,389.81 and 151,805.25

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Solution

The fourth proportional to 320,166.99, 480,389.81 and 151,805.25 is: 227,773.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,166.99 : 480,389.81 = 151,805.25 : x
  2. Step 2: Convert to fraction form
    320,166.99/480,389.81 = 151,805.25/x
  3. Step 3: Cross multiply
    320,166.99x = 480,389.81 × 151,805.25
  4. Step 4: Simplify right side
    320,166.99x = 72,925,694,445.48
  5. Step 5: Solve for x
    x = 72,925,694,445.48/320,166.99
  6. Step 6: Final answer
    x = 227,773.93

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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.