Home / 351,079.86-484,548.16-215,189.40

Finding the Fourth Proportional to 351,079.86, 484,548.16 and 215,189.40

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Solution

The fourth proportional to 351,079.86, 484,548.16 and 215,189.40 is: 296,996.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,079.86 : 484,548.16 = 215,189.40 : x
  2. Step 2: Convert to fraction form
    351,079.86/484,548.16 = 215,189.40/x
  3. Step 3: Cross multiply
    351,079.86x = 484,548.16 × 215,189.40
  4. Step 4: Simplify right side
    351,079.86x = 104,269,627,821.50
  5. Step 5: Solve for x
    x = 104,269,627,821.50/351,079.86
  6. Step 6: Final answer
    x = 296,996.89

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.