Home / 210,683.48-290,744.43-115,190.18

Finding the Fourth Proportional to 210,683.48, 290,744.43 and 115,190.18

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Solution

The fourth proportional to 210,683.48, 290,744.43 and 115,190.18 is: 158,963.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,683.48 : 290,744.43 = 115,190.18 : x
  2. Step 2: Convert to fraction form
    210,683.48/290,744.43 = 115,190.18/x
  3. Step 3: Cross multiply
    210,683.48x = 290,744.43 × 115,190.18
  4. Step 4: Simplify right side
    210,683.48x = 33,490,901,771.98
  5. Step 5: Solve for x
    x = 33,490,901,771.98/210,683.48
  6. Step 6: Final answer
    x = 158,963.11

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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.