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Finding the Fourth Proportional to 202,300.20, 279,154.35 and 111,661.20

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Solution

The fourth proportional to 202,300.20, 279,154.35 and 111,661.20 is: 154,081.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,300.20 : 279,154.35 = 111,661.20 : x
  2. Step 2: Convert to fraction form
    202,300.20/279,154.35 = 111,661.20/x
  3. Step 3: Cross multiply
    202,300.20x = 279,154.35 × 111,661.20
  4. Step 4: Simplify right side
    202,300.20x = 31,170,709,706.22
  5. Step 5: Solve for x
    x = 31,170,709,706.22/202,300.20
  6. Step 6: Final answer
    x = 154,081.46

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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.