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Finding the Fourth Proportional to 538,981.70, 808,666.95 and 223,535.30

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Solution

The fourth proportional to 538,981.70, 808,666.95 and 223,535.30 is: 335,383.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,981.70 : 808,666.95 = 223,535.30 : x
  2. Step 2: Convert to fraction form
    538,981.70/808,666.95 = 223,535.30/x
  3. Step 3: Cross multiply
    538,981.70x = 808,666.95 × 223,535.30
  4. Step 4: Simplify right side
    538,981.70x = 180,765,609,268.34
  5. Step 5: Solve for x
    x = 180,765,609,268.34/538,981.70
  6. Step 6: Final answer
    x = 335,383.57

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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.