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Finding the Fourth Proportional to 353,097.76, 486,817.54 and 228,697.40

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Solution

The fourth proportional to 353,097.76, 486,817.54 and 228,697.40 is: 315,306.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,097.76 : 486,817.54 = 228,697.40 : x
  2. Step 2: Convert to fraction form
    353,097.76/486,817.54 = 228,697.40/x
  3. Step 3: Cross multiply
    353,097.76x = 486,817.54 × 228,697.40
  4. Step 4: Simplify right side
    353,097.76x = 111,333,904,528.91
  5. Step 5: Solve for x
    x = 111,333,904,528.91/353,097.76
  6. Step 6: Final answer
    x = 315,306.18

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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.