Finding the Fourth Proportional to 190,948.70, 286,350.15 and 57,784.70
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Solution
The fourth proportional to 190,948.70, 286,350.15 and 57,784.70 is: 86,654.99
Step by Step Solution
- Step 1: Write the proportion equation
190,948.70 : 286,350.15 = 57,784.70 : x - Step 2: Convert to fraction form
190,948.70/286,350.15 = 57,784.70/x - Step 3: Cross multiply
190,948.70x = 286,350.15 × 57,784.70 - Step 4: Simplify right side
190,948.70x = 16,546,657,512.71 - Step 5: Solve for x
x = 16,546,657,512.71/190,948.70 - Step 6: Final answer
x = 86,654.99
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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.