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Finding the Fourth Proportional to 210,241.71, 290,131.47 and 114,747.57

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Solution

The fourth proportional to 210,241.71, 290,131.47 and 114,747.57 is: 158,350.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,241.71 : 290,131.47 = 114,747.57 : x
  2. Step 2: Convert to fraction form
    210,241.71/290,131.47 = 114,747.57/x
  3. Step 3: Cross multiply
    210,241.71x = 290,131.47 × 114,747.57
  4. Step 4: Simplify right side
    210,241.71x = 33,291,881,163.03
  5. Step 5: Solve for x
    x = 33,291,881,163.03/210,241.71
  6. Step 6: Final answer
    x = 158,350.51

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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.