Finding the Fourth Proportional to 306,140.84, 459,202.81 and 81,503.23
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Solution
The fourth proportional to 306,140.84, 459,202.81 and 81,503.23 is: 122,252.59
Step by Step Solution
- Step 1: Write the proportion equation
306,140.84 : 459,202.81 = 81,503.23 : x - Step 2: Convert to fraction form
306,140.84/459,202.81 = 81,503.23/x - Step 3: Cross multiply
306,140.84x = 459,202.81 × 81,503.23 - Step 4: Simplify right side
306,140.84x = 37,426,509,850.26 - Step 5: Solve for x
x = 37,426,509,850.26/306,140.84 - Step 6: Final answer
x = 122,252.59
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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.