Finding the Fourth Proportional to 215,486.70, 297,368.78 and 118,688.68
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Solution
The fourth proportional to 215,486.70, 297,368.78 and 118,688.68 is: 163,788.80
Step by Step Solution
- Step 1: Write the proportion equation
215,486.70 : 297,368.78 = 118,688.68 : x - Step 2: Convert to fraction form
215,486.70/297,368.78 = 118,688.68/x - Step 3: Cross multiply
215,486.70x = 297,368.78 × 118,688.68 - Step 4: Simplify right side
215,486.70x = 35,294,307,971.41 - Step 5: Solve for x
x = 35,294,307,971.41/215,486.70 - Step 6: Final answer
x = 163,788.80
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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.