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Finding the Fourth Proportional to 235,588, 325,111.44 and 129,604

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Solution

The fourth proportional to 235,588, 325,111.44 and 129,604 is: 178,853.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,588 : 325,111.44 = 129,604 : x
  2. Step 2: Convert to fraction form
    235,588/325,111.44 = 129,604/x
  3. Step 3: Cross multiply
    235,588x = 325,111.44 × 129,604
  4. Step 4: Simplify right side
    235,588x = 42,135,743,069.76
  5. Step 5: Solve for x
    x = 42,135,743,069.76/235,588
  6. Step 6: Final answer
    x = 178,853.52

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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.