Finding the Fourth Proportional to 399,075.75, 598,639.01 and 162,288.99
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Solution
The fourth proportional to 399,075.75, 598,639.01 and 162,288.99 is: 243,443.81
Step by Step Solution
- Step 1: Write the proportion equation
399,075.75 : 598,639.01 = 162,288.99 : x - Step 2: Convert to fraction form
399,075.75/598,639.01 = 162,288.99/x - Step 3: Cross multiply
399,075.75x = 598,639.01 × 162,288.99 - Step 4: Simplify right side
399,075.75x = 97,152,519,496.06 - Step 5: Solve for x
x = 97,152,519,496.06/399,075.75 - Step 6: Final answer
x = 243,443.81
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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.