Finding the Fourth Proportional to 660,355.80, 990,533.70 and 161,719.80
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Solution
The fourth proportional to 660,355.80, 990,533.70 and 161,719.80 is: 242,579.70
Step by Step Solution
- Step 1: Write the proportion equation
660,355.80 : 990,533.70 = 161,719.80 : x - Step 2: Convert to fraction form
660,355.80/990,533.70 = 161,719.80/x - Step 3: Cross multiply
660,355.80x = 990,533.70 × 161,719.80 - Step 4: Simplify right side
660,355.80x = 160,188,911,857.26 - Step 5: Solve for x
x = 160,188,911,857.26/660,355.80 - Step 6: Final answer
x = 242,579.70
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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.