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Finding the Fourth Proportional to 354,101.04, 531,153.96 and 104,785.20

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Solution

The fourth proportional to 354,101.04, 531,153.96 and 104,785.20 is: 157,178.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,101.04 : 531,153.96 = 104,785.20 : x
  2. Step 2: Convert to fraction form
    354,101.04/531,153.96 = 104,785.20/x
  3. Step 3: Cross multiply
    354,101.04x = 531,153.96 × 104,785.20
  4. Step 4: Simplify right side
    354,101.04x = 55,657,073,929.39
  5. Step 5: Solve for x
    x = 55,657,073,929.39/354,101.04
  6. Step 6: Final answer
    x = 157,178.51

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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.