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Finding the Fourth Proportional to 202,209.71, 279,047.59 and 111,566.48

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Solution

The fourth proportional to 202,209.71, 279,047.59 and 111,566.48 is: 153,960.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,209.71 : 279,047.59 = 111,566.48 : x
  2. Step 2: Convert to fraction form
    202,209.71/279,047.59 = 111,566.48/x
  3. Step 3: Cross multiply
    202,209.71x = 279,047.59 × 111,566.48
  4. Step 4: Simplify right side
    202,209.71x = 31,132,355,694.63
  5. Step 5: Solve for x
    x = 31,132,355,694.63/202,209.71
  6. Step 6: Final answer
    x = 153,960.74

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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.