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Finding the Fourth Proportional to 209,891.60, 314,837.40 and 110,013.20

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Solution

The fourth proportional to 209,891.60, 314,837.40 and 110,013.20 is: 165,019.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,891.60 : 314,837.40 = 110,013.20 : x
  2. Step 2: Convert to fraction form
    209,891.60/314,837.40 = 110,013.20/x
  3. Step 3: Cross multiply
    209,891.60x = 314,837.40 × 110,013.20
  4. Step 4: Simplify right side
    209,891.60x = 34,636,269,853.68
  5. Step 5: Solve for x
    x = 34,636,269,853.68/209,891.60
  6. Step 6: Final answer
    x = 165,019.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.