Finding the Fourth Proportional to 429,705.69, 643,927.62 and 216,180.09
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Solution
The fourth proportional to 429,705.69, 643,927.62 and 216,180.09 is: 323,952.73
Step by Step Solution
- Step 1: Write the proportion equation
429,705.69 : 643,927.62 = 216,180.09 : x - Step 2: Convert to fraction form
429,705.69/643,927.62 = 216,180.09/x - Step 3: Cross multiply
429,705.69x = 643,927.62 × 216,180.09 - Step 4: Simplify right side
429,705.69x = 139,204,330,845.09 - Step 5: Solve for x
x = 139,204,330,845.09/429,705.69 - Step 6: Final answer
x = 323,952.73
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.