Finding the Fourth Proportional to 221,268.51, 331,312.68 and 115,866.45
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Solution
The fourth proportional to 221,268.51, 331,312.68 and 115,866.45 is: 173,490.68
Step by Step Solution
- Step 1: Write the proportion equation
221,268.51 : 331,312.68 = 115,866.45 : x - Step 2: Convert to fraction form
221,268.51/331,312.68 = 115,866.45/x - Step 3: Cross multiply
221,268.51x = 331,312.68 × 115,866.45 - Step 4: Simplify right side
221,268.51x = 38,388,024,071.59 - Step 5: Solve for x
x = 38,388,024,071.59/221,268.51 - Step 6: Final answer
x = 173,490.68
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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.