Home / 209,328.32-288,880.66-119,921.60

Finding the Fourth Proportional to 209,328.32, 288,880.66 and 119,921.60

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Solution

The fourth proportional to 209,328.32, 288,880.66 and 119,921.60 is: 165,496.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,328.32 : 288,880.66 = 119,921.60 : x
  2. Step 2: Convert to fraction form
    209,328.32/288,880.66 = 119,921.60/x
  3. Step 3: Cross multiply
    209,328.32x = 288,880.66 × 119,921.60
  4. Step 4: Simplify right side
    209,328.32x = 34,643,030,956.26
  5. Step 5: Solve for x
    x = 34,643,030,956.26/209,328.32
  6. Step 6: Final answer
    x = 165,496.15

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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.