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Finding the Fourth Proportional to 215,347.88, 297,189.86 and 119,860.68

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Solution

The fourth proportional to 215,347.88, 297,189.86 and 119,860.68 is: 165,413.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,347.88 : 297,189.86 = 119,860.68 : x
  2. Step 2: Convert to fraction form
    215,347.88/297,189.86 = 119,860.68/x
  3. Step 3: Cross multiply
    215,347.88x = 297,189.86 × 119,860.68
  4. Step 4: Simplify right side
    215,347.88x = 35,621,378,708.70
  5. Step 5: Solve for x
    x = 35,621,378,708.70/215,347.88
  6. Step 6: Final answer
    x = 165,413.18

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1.5x scale

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.