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Finding the Fourth Proportional to 209,304.40, 313,956.60 and 104,328.40

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Solution

The fourth proportional to 209,304.40, 313,956.60 and 104,328.40 is: 156,492.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,304.40 : 313,956.60 = 104,328.40 : x
  2. Step 2: Convert to fraction form
    209,304.40/313,956.60 = 104,328.40/x
  3. Step 3: Cross multiply
    209,304.40x = 313,956.60 × 104,328.40
  4. Step 4: Simplify right side
    209,304.40x = 32,754,589,747.44
  5. Step 5: Solve for x
    x = 32,754,589,747.44/209,304.40
  6. Step 6: Final answer
    x = 156,492.60

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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.