Home / 209,384.60-288,955.50-113,896.40

Finding the Fourth Proportional to 209,384.60, 288,955.50 and 113,896.40

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Solution

The fourth proportional to 209,384.60, 288,955.50 and 113,896.40 is: 157,179.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,384.60 : 288,955.50 = 113,896.40 : x
  2. Step 2: Convert to fraction form
    209,384.60/288,955.50 = 113,896.40/x
  3. Step 3: Cross multiply
    209,384.60x = 288,955.50 × 113,896.40
  4. Step 4: Simplify right side
    209,384.60x = 32,910,991,210.20
  5. Step 5: Solve for x
    x = 32,910,991,210.20/209,384.60
  6. Step 6: Final answer
    x = 157,179.62

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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.