Finding the Fourth Proportional to 348,368.70, 521,775.45 and 286,160.70
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Solution
The fourth proportional to 348,368.70, 521,775.45 and 286,160.70 is: 428,602.31
Step by Step Solution
- Step 1: Write the proportion equation
348,368.70 : 521,775.45 = 286,160.70 : x - Step 2: Convert to fraction form
348,368.70/521,775.45 = 286,160.70/x - Step 3: Cross multiply
348,368.70x = 521,775.45 × 286,160.70 - Step 4: Simplify right side
348,368.70x = 149,311,628,014.82 - Step 5: Solve for x
x = 149,311,628,014.82/348,368.70 - Step 6: Final answer
x = 428,602.31
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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.