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Finding the Fourth Proportional to 320,874.83, 480,620.25 and 302,010.34

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Solution

The fourth proportional to 320,874.83, 480,620.25 and 302,010.34 is: 452,364.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,874.83 : 480,620.25 = 302,010.34 : x
  2. Step 2: Convert to fraction form
    320,874.83/480,620.25 = 302,010.34/x
  3. Step 3: Cross multiply
    320,874.83x = 480,620.25 × 302,010.34
  4. Step 4: Simplify right side
    320,874.83x = 145,152,283,963.59
  5. Step 5: Solve for x
    x = 145,152,283,963.59/320,874.83
  6. Step 6: Final answer
    x = 452,364.19

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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.