Finding the Fourth Proportional to 339,315.49, 508,972.80 and 86,595.99
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Solution
The fourth proportional to 339,315.49, 508,972.80 and 86,595.99 is: 129,893.87
Step by Step Solution
- Step 1: Write the proportion equation
339,315.49 : 508,972.80 = 86,595.99 : x - Step 2: Convert to fraction form
339,315.49/508,972.80 = 86,595.99/x - Step 3: Cross multiply
339,315.49x = 508,972.80 × 86,595.99 - Step 4: Simplify right side
339,315.49x = 44,075,003,499.07 - Step 5: Solve for x
x = 44,075,003,499.07/339,315.49 - Step 6: Final answer
x = 129,893.87
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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.