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Finding the Fourth Proportional to 361,448.34, 498,811.60 and 218,180.40

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Solution

The fourth proportional to 361,448.34, 498,811.60 and 218,180.40 is: 301,096.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,448.34 : 498,811.60 = 218,180.40 : x
  2. Step 2: Convert to fraction form
    361,448.34/498,811.60 = 218,180.40/x
  3. Step 3: Cross multiply
    361,448.34x = 498,811.60 × 218,180.40
  4. Step 4: Simplify right side
    361,448.34x = 108,830,914,412.64
  5. Step 5: Solve for x
    x = 108,830,914,412.64/361,448.34
  6. Step 6: Final answer
    x = 301,096.73

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1.5x scale

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.