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Finding the Fourth Proportional to 354,135.04, 531,359.41 and 185,615.30

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Solution

The fourth proportional to 354,135.04, 531,359.41 and 185,615.30 is: 278,505.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,135.04 : 531,359.41 = 185,615.30 : x
  2. Step 2: Convert to fraction form
    354,135.04/531,359.41 = 185,615.30/x
  3. Step 3: Cross multiply
    354,135.04x = 531,359.41 × 185,615.30
  4. Step 4: Simplify right side
    354,135.04x = 98,628,438,859.80
  5. Step 5: Solve for x
    x = 98,628,438,859.80/354,135.04
  6. Step 6: Final answer
    x = 278,505.17

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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.