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Finding the Fourth Proportional to 197,503.20, 295,995.60 and 142,034.40

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Solution

The fourth proportional to 197,503.20, 295,995.60 and 142,034.40 is: 212,865.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,503.20 : 295,995.60 = 142,034.40 : x
  2. Step 2: Convert to fraction form
    197,503.20/295,995.60 = 142,034.40/x
  3. Step 3: Cross multiply
    197,503.20x = 295,995.60 × 142,034.40
  4. Step 4: Simplify right side
    197,503.20x = 42,041,557,448.64
  5. Step 5: Solve for x
    x = 42,041,557,448.64/197,503.20
  6. Step 6: Final answer
    x = 212,865.20

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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.