Finding the Fourth Proportional to 207,259.40, 310,889.10 and 190,929.80
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Solution
The fourth proportional to 207,259.40, 310,889.10 and 190,929.80 is: 286,394.70
Step by Step Solution
- Step 1: Write the proportion equation
207,259.40 : 310,889.10 = 190,929.80 : x - Step 2: Convert to fraction form
207,259.40/310,889.10 = 190,929.80/x - Step 3: Cross multiply
207,259.40x = 310,889.10 × 190,929.80 - Step 4: Simplify right side
207,259.40x = 59,357,993,685.18 - Step 5: Solve for x
x = 59,357,993,685.18/207,259.40 - Step 6: Final answer
x = 286,394.70
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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.