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Finding the Fourth Proportional to 202,397.37, 279,301.06 and 111,751.40

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Solution

The fourth proportional to 202,397.37, 279,301.06 and 111,751.40 is: 154,212.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,397.37 : 279,301.06 = 111,751.40 : x
  2. Step 2: Convert to fraction form
    202,397.37/279,301.06 = 111,751.40/x
  3. Step 3: Cross multiply
    202,397.37x = 279,301.06 × 111,751.40
  4. Step 4: Simplify right side
    202,397.37x = 31,212,283,743.36
  5. Step 5: Solve for x
    x = 31,212,283,743.36/202,397.37
  6. Step 6: Final answer
    x = 154,212.89

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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.