Finding the Fourth Proportional to 306,541.20, 459,811.80 and 84,925.20
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Solution
The fourth proportional to 306,541.20, 459,811.80 and 84,925.20 is: 127,387.80
Step by Step Solution
- Step 1: Write the proportion equation
306,541.20 : 459,811.80 = 84,925.20 : x - Step 2: Convert to fraction form
306,541.20/459,811.80 = 84,925.20/x - Step 3: Cross multiply
306,541.20x = 459,811.80 × 84,925.20 - Step 4: Simplify right side
306,541.20x = 39,049,609,077.36 - Step 5: Solve for x
x = 39,049,609,077.36/306,541.20 - Step 6: Final answer
x = 127,387.80
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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.