Finding the Fourth Proportional to 279,282.18, 385,448.94 and 158,453.40
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Solution
The fourth proportional to 279,282.18, 385,448.94 and 158,453.40 is: 218,688.12
Step by Step Solution
- Step 1: Write the proportion equation
279,282.18 : 385,448.94 = 158,453.40 : x - Step 2: Convert to fraction form
279,282.18/385,448.94 = 158,453.40/x - Step 3: Cross multiply
279,282.18x = 385,448.94 × 158,453.40 - Step 4: Simplify right side
279,282.18x = 61,075,695,069.40 - Step 5: Solve for x
x = 61,075,695,069.40/279,282.18 - Step 6: Final answer
x = 218,688.12
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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.