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Finding the Fourth Proportional to 223,680.06, 308,678.48 and 123,078.06

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Solution

The fourth proportional to 223,680.06, 308,678.48 and 123,078.06 is: 169,847.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,680.06 : 308,678.48 = 123,078.06 : x
  2. Step 2: Convert to fraction form
    223,680.06/308,678.48 = 123,078.06/x
  3. Step 3: Cross multiply
    223,680.06x = 308,678.48 × 123,078.06
  4. Step 4: Simplify right side
    223,680.06x = 37,991,548,482.15
  5. Step 5: Solve for x
    x = 37,991,548,482.15/223,680.06
  6. Step 6: Final answer
    x = 169,847.72

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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.