Finding the Fourth Proportional to 290,455.76, 435,854.16 and 121,963.14
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Solution
The fourth proportional to 290,455.76, 435,854.16 and 121,963.14 is: 183,016.31
Step by Step Solution
- Step 1: Write the proportion equation
290,455.76 : 435,854.16 = 121,963.14 : x - Step 2: Convert to fraction form
290,455.76/435,854.16 = 121,963.14/x - Step 3: Cross multiply
290,455.76x = 435,854.16 × 121,963.14 - Step 4: Simplify right side
290,455.76x = 53,158,141,935.66 - Step 5: Solve for x
x = 53,158,141,935.66/290,455.76 - Step 6: Final answer
x = 183,016.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.