Home / 197,451.38-272,482.88-111,428.57

Finding the Fourth Proportional to 197,451.38, 272,482.88 and 111,428.57

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Solution

The fourth proportional to 197,451.38, 272,482.88 and 111,428.57 is: 153,771.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,451.38 : 272,482.88 = 111,428.57 : x
  2. Step 2: Convert to fraction form
    197,451.38/272,482.88 = 111,428.57/x
  3. Step 3: Cross multiply
    197,451.38x = 272,482.88 × 111,428.57
  4. Step 4: Simplify right side
    197,451.38x = 30,362,375,748.32
  5. Step 5: Solve for x
    x = 30,362,375,748.32/197,451.38
  6. Step 6: Final answer
    x = 153,771.41

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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.