Finding the Fourth Proportional to 207,386.04, 286,114.52 and 121,317.60
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Solution
The fourth proportional to 207,386.04, 286,114.52 and 121,317.60 is: 167,372.53
Step by Step Solution
- Step 1: Write the proportion equation
207,386.04 : 286,114.52 = 121,317.60 : x - Step 2: Convert to fraction form
207,386.04/286,114.52 = 121,317.60/x - Step 3: Cross multiply
207,386.04x = 286,114.52 × 121,317.60 - Step 4: Simplify right side
207,386.04x = 34,710,726,891.55 - Step 5: Solve for x
x = 34,710,726,891.55/207,386.04 - Step 6: Final answer
x = 167,372.53
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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.