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Finding the Fourth Proportional to 303,065.70, 455,582.70 and 214,929.60

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Solution

The fourth proportional to 303,065.70, 455,582.70 and 214,929.60 is: 323,092.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,065.70 : 455,582.70 = 214,929.60 : x
  2. Step 2: Convert to fraction form
    303,065.70/455,582.70 = 214,929.60/x
  3. Step 3: Cross multiply
    303,065.70x = 455,582.70 × 214,929.60
  4. Step 4: Simplify right side
    303,065.70x = 97,918,207,477.92
  5. Step 5: Solve for x
    x = 97,918,207,477.92/303,065.70
  6. Step 6: Final answer
    x = 323,092.34

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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.