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Finding the Fourth Proportional to 525,352.10, 788,138.85 and 170,338.43

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Solution

The fourth proportional to 525,352.10, 788,138.85 and 170,338.43 is: 255,543.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,352.10 : 788,138.85 = 170,338.43 : x
  2. Step 2: Convert to fraction form
    525,352.10/788,138.85 = 170,338.43/x
  3. Step 3: Cross multiply
    525,352.10x = 788,138.85 × 170,338.43
  4. Step 4: Simplify right side
    525,352.10x = 134,250,336,940.12
  5. Step 5: Solve for x
    x = 134,250,336,940.12/525,352.10
  6. Step 6: Final answer
    x = 255,543.55

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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.