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Finding the Fourth Proportional to 209,050.40, 313,721.40 and 134,352.20

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Solution

The fourth proportional to 209,050.40, 313,721.40 and 134,352.20 is: 201,622.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,050.40 : 313,721.40 = 134,352.20 : x
  2. Step 2: Convert to fraction form
    209,050.40/313,721.40 = 134,352.20/x
  3. Step 3: Cross multiply
    209,050.40x = 313,721.40 × 134,352.20
  4. Step 4: Simplify right side
    209,050.40x = 42,149,160,277.08
  5. Step 5: Solve for x
    x = 42,149,160,277.08/209,050.40
  6. Step 6: Final answer
    x = 201,622.00

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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.