Finding the Fourth Proportional to 408,551.06, 613,210.54 and 213,943.95
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Solution
The fourth proportional to 408,551.06, 613,210.54 and 213,943.95 is: 321,116.99
Step by Step Solution
- Step 1: Write the proportion equation
408,551.06 : 613,210.54 = 213,943.95 : x - Step 2: Convert to fraction form
408,551.06/613,210.54 = 213,943.95/x - Step 3: Cross multiply
408,551.06x = 613,210.54 × 213,943.95 - Step 4: Simplify right side
408,551.06x = 131,192,684,975.52 - Step 5: Solve for x
x = 131,192,684,975.52/408,551.06 - Step 6: Final answer
x = 321,116.99
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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.