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Finding the Fourth Proportional to 538,980.20, 808,664.70 and 223,533.80

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Solution

The fourth proportional to 538,980.20, 808,664.70 and 223,533.80 is: 335,381.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,980.20 : 808,664.70 = 223,533.80 : x
  2. Step 2: Convert to fraction form
    538,980.20/808,664.70 = 223,533.80/x
  3. Step 3: Cross multiply
    538,980.20x = 808,664.70 × 223,533.80
  4. Step 4: Simplify right side
    538,980.20x = 180,763,893,316.86
  5. Step 5: Solve for x
    x = 180,763,893,316.86/538,980.20
  6. Step 6: Final answer
    x = 335,381.32

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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.