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Finding the Fourth Proportional to 289,000.30, 433,500.45 and 164,584.30

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Solution

The fourth proportional to 289,000.30, 433,500.45 and 164,584.30 is: 246,876.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,000.30 : 433,500.45 = 164,584.30 : x
  2. Step 2: Convert to fraction form
    289,000.30/433,500.45 = 164,584.30/x
  3. Step 3: Cross multiply
    289,000.30x = 433,500.45 × 164,584.30
  4. Step 4: Simplify right side
    289,000.30x = 71,347,368,112.94
  5. Step 5: Solve for x
    x = 71,347,368,112.94/289,000.30
  6. Step 6: Final answer
    x = 246,876.45

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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.