Finding the Fourth Proportional to 413,317.20, 619,975.80 and 177,121.20
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Solution
The fourth proportional to 413,317.20, 619,975.80 and 177,121.20 is: 265,681.80
Step by Step Solution
- Step 1: Write the proportion equation
413,317.20 : 619,975.80 = 177,121.20 : x - Step 2: Convert to fraction form
413,317.20/619,975.80 = 177,121.20/x - Step 3: Cross multiply
413,317.20x = 619,975.80 × 177,121.20 - Step 4: Simplify right side
413,317.20x = 109,810,857,666.96 - Step 5: Solve for x
x = 109,810,857,666.96/413,317.20 - Step 6: Final answer
x = 265,681.80
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1.5x scale
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.