Finding the Fourth Proportional to 221,934.06, 306,268.95 and 121,332.06
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Solution
The fourth proportional to 221,934.06, 306,268.95 and 121,332.06 is: 167,438.21
Step by Step Solution
- Step 1: Write the proportion equation
221,934.06 : 306,268.95 = 121,332.06 : x - Step 2: Convert to fraction form
221,934.06/306,268.95 = 121,332.06/x - Step 3: Cross multiply
221,934.06x = 306,268.95 × 121,332.06 - Step 4: Simplify right side
221,934.06x = 37,160,242,617.54 - Step 5: Solve for x
x = 37,160,242,617.54/221,934.06 - Step 6: Final answer
x = 167,438.21
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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.