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Finding the Fourth Proportional to 210,677.99, 290,735.63 and 115,184.69

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Solution

The fourth proportional to 210,677.99, 290,735.63 and 115,184.69 is: 158,954.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,677.99 : 290,735.63 = 115,184.69 : x
  2. Step 2: Convert to fraction form
    210,677.99/290,735.63 = 115,184.69/x
  3. Step 3: Cross multiply
    210,677.99x = 290,735.63 × 115,184.69
  4. Step 4: Simplify right side
    210,677.99x = 33,488,293,413.50
  5. Step 5: Solve for x
    x = 33,488,293,413.50/210,677.99
  6. Step 6: Final answer
    x = 158,954.87

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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.