Home / 212,816.38-319,318.61-111,590.26

Finding the Fourth Proportional to 212,816.38, 319,318.61 and 111,590.26

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Solution

The fourth proportional to 212,816.38, 319,318.61 and 111,590.26 is: 167,434.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,816.38 : 319,318.61 = 111,590.26 : x
  2. Step 2: Convert to fraction form
    212,816.38/319,318.61 = 111,590.26/x
  3. Step 3: Cross multiply
    212,816.38x = 319,318.61 × 111,590.26
  4. Step 4: Simplify right side
    212,816.38x = 35,632,845,356.49
  5. Step 5: Solve for x
    x = 35,632,845,356.49/212,816.38
  6. Step 6: Final answer
    x = 167,434.69

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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.