Finding the Fourth Proportional to 319,281.71, 478,783.76 and 91,527.17
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Solution
The fourth proportional to 319,281.71, 478,783.76 and 91,527.17 is: 137,250.96
Step by Step Solution
- Step 1: Write the proportion equation
319,281.71 : 478,783.76 = 91,527.17 : x - Step 2: Convert to fraction form
319,281.71/478,783.76 = 91,527.17/x - Step 3: Cross multiply
319,281.71x = 478,783.76 × 91,527.17 - Step 4: Simplify right side
319,281.71x = 43,821,719,743.20 - Step 5: Solve for x
x = 43,821,719,743.20/319,281.71 - Step 6: Final answer
x = 137,250.96
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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.