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Finding the Fourth Proportional to 289,735.80, 433,566.90 and 264,852.60

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Solution

The fourth proportional to 289,735.80, 433,566.90 and 264,852.60 is: 396,331.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,735.80 : 433,566.90 = 264,852.60 : x
  2. Step 2: Convert to fraction form
    289,735.80/433,566.90 = 264,852.60/x
  3. Step 3: Cross multiply
    289,735.80x = 433,566.90 × 264,852.60
  4. Step 4: Simplify right side
    289,735.80x = 114,831,320,738.94
  5. Step 5: Solve for x
    x = 114,831,320,738.94/289,735.80
  6. Step 6: Final answer
    x = 396,331.14

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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.