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Finding the Fourth Proportional to 350,890.40, 525,644.40 and 326,007.20

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Solution

The fourth proportional to 350,890.40, 525,644.40 and 326,007.20 is: 488,368.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,890.40 : 525,644.40 = 326,007.20 : x
  2. Step 2: Convert to fraction form
    350,890.40/525,644.40 = 326,007.20/x
  3. Step 3: Cross multiply
    350,890.40x = 525,644.40 × 326,007.20
  4. Step 4: Simplify right side
    350,890.40x = 171,363,859,039.68
  5. Step 5: Solve for x
    x = 171,363,859,039.68/350,890.40
  6. Step 6: Final answer
    x = 488,368.62

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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.