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Finding the Fourth Proportional to 298,620, 412,095.60 and 164,484

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Solution

The fourth proportional to 298,620, 412,095.60 and 164,484 is: 226,987.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,620 : 412,095.60 = 164,484 : x
  2. Step 2: Convert to fraction form
    298,620/412,095.60 = 164,484/x
  3. Step 3: Cross multiply
    298,620x = 412,095.60 × 164,484
  4. Step 4: Simplify right side
    298,620x = 67,783,132,670.40
  5. Step 5: Solve for x
    x = 67,783,132,670.40/298,620
  6. Step 6: Final answer
    x = 226,987.92

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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.