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Finding the Fourth Proportional to 223,648.65, 308,637.59 and 121,674.69

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Solution

The fourth proportional to 223,648.65, 308,637.59 and 121,674.69 is: 167,912.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,648.65 : 308,637.59 = 121,674.69 : x
  2. Step 2: Convert to fraction form
    223,648.65/308,637.59 = 121,674.69/x
  3. Step 3: Cross multiply
    223,648.65x = 308,637.59 × 121,674.69
  4. Step 4: Simplify right side
    223,648.65x = 37,553,382,477.22
  5. Step 5: Solve for x
    x = 37,553,382,477.22/223,648.65
  6. Step 6: Final answer
    x = 167,912.40

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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.