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Finding the Fourth Proportional to 430,033.90, 644,163.90 and 252,001.30

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Solution

The fourth proportional to 430,033.90, 644,163.90 and 252,001.30 is: 377,482.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,033.90 : 644,163.90 = 252,001.30 : x
  2. Step 2: Convert to fraction form
    430,033.90/644,163.90 = 252,001.30/x
  3. Step 3: Cross multiply
    430,033.90x = 644,163.90 × 252,001.30
  4. Step 4: Simplify right side
    430,033.90x = 162,330,140,213.07
  5. Step 5: Solve for x
    x = 162,330,140,213.07/430,033.90
  6. Step 6: Final answer
    x = 377,482.19

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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.