Home / 197,279.40-272,240.10-111,237.60

Finding the Fourth Proportional to 197,279.40, 272,240.10 and 111,237.60

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Solution

The fourth proportional to 197,279.40, 272,240.10 and 111,237.60 is: 153,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,279.40 : 272,240.10 = 111,237.60 : x
  2. Step 2: Convert to fraction form
    197,279.40/272,240.10 = 111,237.60/x
  3. Step 3: Cross multiply
    197,279.40x = 272,240.10 × 111,237.60
  4. Step 4: Simplify right side
    197,279.40x = 30,283,335,347.76
  5. Step 5: Solve for x
    x = 30,283,335,347.76/197,279.40
  6. Step 6: Final answer
    x = 153,504.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.