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Finding the Fourth Proportional to 153,378.40, 230,067.60 and 144,630.40

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Solution

The fourth proportional to 153,378.40, 230,067.60 and 144,630.40 is: 216,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,378.40 : 230,067.60 = 144,630.40 : x
  2. Step 2: Convert to fraction form
    153,378.40/230,067.60 = 144,630.40/x
  3. Step 3: Cross multiply
    153,378.40x = 230,067.60 × 144,630.40
  4. Step 4: Simplify right side
    153,378.40x = 33,274,769,015.04
  5. Step 5: Solve for x
    x = 33,274,769,015.04/153,378.40
  6. Step 6: Final answer
    x = 216,945.60

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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.