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Finding the Fourth Proportional to 525,356.10, 788,144.85 and 170,342.43

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Solution

The fourth proportional to 525,356.10, 788,144.85 and 170,342.43 is: 255,549.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,356.10 : 788,144.85 = 170,342.43 : x
  2. Step 2: Convert to fraction form
    525,356.10/788,144.85 = 170,342.43/x
  3. Step 3: Cross multiply
    525,356.10x = 788,144.85 × 170,342.43
  4. Step 4: Simplify right side
    525,356.10x = 134,254,508,940.99
  5. Step 5: Solve for x
    x = 134,254,508,940.99/525,356.10
  6. Step 6: Final answer
    x = 255,549.54

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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.