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Finding the Fourth Proportional to 246,864, 370,313.28 and 99,120

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Solution

The fourth proportional to 246,864, 370,313.28 and 99,120 is: 148,686.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,864 : 370,313.28 = 99,120 : x
  2. Step 2: Convert to fraction form
    246,864/370,313.28 = 99,120/x
  3. Step 3: Cross multiply
    246,864x = 370,313.28 × 99,120
  4. Step 4: Simplify right side
    246,864x = 36,705,452,313.60
  5. Step 5: Solve for x
    x = 36,705,452,313.60/246,864
  6. Step 6: Final answer
    x = 148,686.94

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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.