Home / 209,025.53-288,405.82-122,988.27

Finding the Fourth Proportional to 209,025.53, 288,405.82 and 122,988.27

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Solution

The fourth proportional to 209,025.53, 288,405.82 and 122,988.27 is: 169,694.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,025.53 : 288,405.82 = 122,988.27 : x
  2. Step 2: Convert to fraction form
    209,025.53/288,405.82 = 122,988.27/x
  3. Step 3: Cross multiply
    209,025.53x = 288,405.82 × 122,988.27
  4. Step 4: Simplify right side
    209,025.53x = 35,470,533,403.18
  5. Step 5: Solve for x
    x = 35,470,533,403.18/209,025.53
  6. Step 6: Final answer
    x = 169,694.74

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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.