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Finding the Fourth Proportional to 525,410.86, 788,226.96 and 170,397.18

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Solution

The fourth proportional to 525,410.86, 788,226.96 and 170,397.18 is: 255,631.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,410.86 : 788,226.96 = 170,397.18 : x
  2. Step 2: Convert to fraction form
    525,410.86/788,226.96 = 170,397.18/x
  3. Step 3: Cross multiply
    525,410.86x = 788,226.96 × 170,397.18
  4. Step 4: Simplify right side
    525,410.86x = 134,311,651,183.97
  5. Step 5: Solve for x
    x = 134,311,651,183.97/525,410.86
  6. Step 6: Final answer
    x = 255,631.66

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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.