Home / 209,433.60-314,150.40-109,555.20

Finding the Fourth Proportional to 209,433.60, 314,150.40 and 109,555.20

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Solution

The fourth proportional to 209,433.60, 314,150.40 and 109,555.20 is: 164,332.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,433.60 : 314,150.40 = 109,555.20 : x
  2. Step 2: Convert to fraction form
    209,433.60/314,150.40 = 109,555.20/x
  3. Step 3: Cross multiply
    209,433.60x = 314,150.40 × 109,555.20
  4. Step 4: Simplify right side
    209,433.60x = 34,416,809,902.08
  5. Step 5: Solve for x
    x = 34,416,809,902.08/209,433.60
  6. Step 6: Final answer
    x = 164,332.80

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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.