Home / 223,376.12-308,261.09-121,401.84

Finding the Fourth Proportional to 223,376.12, 308,261.09 and 121,401.84

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Solution

The fourth proportional to 223,376.12, 308,261.09 and 121,401.84 is: 167,535.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,376.12 : 308,261.09 = 121,401.84 : x
  2. Step 2: Convert to fraction form
    223,376.12/308,261.09 = 121,401.84/x
  3. Step 3: Cross multiply
    223,376.12x = 308,261.09 × 121,401.84
  4. Step 4: Simplify right side
    223,376.12x = 37,423,464,478.65
  5. Step 5: Solve for x
    x = 37,423,464,478.65/223,376.12
  6. Step 6: Final answer
    x = 167,535.65

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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.