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Finding the Fourth Proportional to 210,460.40, 290,441.60 and 114,968.68

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Solution

The fourth proportional to 210,460.40, 290,441.60 and 114,968.68 is: 158,660.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,460.40 : 290,441.60 = 114,968.68 : x
  2. Step 2: Convert to fraction form
    210,460.40/290,441.60 = 114,968.68/x
  3. Step 3: Cross multiply
    210,460.40x = 290,441.60 × 114,968.68
  4. Step 4: Simplify right side
    210,460.40x = 33,391,687,369.09
  5. Step 5: Solve for x
    x = 33,391,687,369.09/210,460.40
  6. Step 6: Final answer
    x = 158,660.19

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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.