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Finding the Fourth Proportional to 201,746.40, 302,619.60 and 83,378.40

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Solution

The fourth proportional to 201,746.40, 302,619.60 and 83,378.40 is: 125,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,746.40 : 302,619.60 = 83,378.40 : x
  2. Step 2: Convert to fraction form
    201,746.40/302,619.60 = 83,378.40/x
  3. Step 3: Cross multiply
    201,746.40x = 302,619.60 × 83,378.40
  4. Step 4: Simplify right side
    201,746.40x = 25,231,938,056.64
  5. Step 5: Solve for x
    x = 25,231,938,056.64/201,746.40
  6. Step 6: Final answer
    x = 125,067.60

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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.