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Finding the Fourth Proportional to 210,591.60, 290,617.16 and 115,098.33

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Solution

The fourth proportional to 210,591.60, 290,617.16 and 115,098.33 is: 158,836.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,591.60 : 290,617.16 = 115,098.33 : x
  2. Step 2: Convert to fraction form
    210,591.60/290,617.16 = 115,098.33/x
  3. Step 3: Cross multiply
    210,591.60x = 290,617.16 × 115,098.33
  4. Step 4: Simplify right side
    210,591.60x = 33,449,549,209.85
  5. Step 5: Solve for x
    x = 33,449,549,209.85/210,591.60
  6. Step 6: Final answer
    x = 158,836.10

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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.