Finding the Fourth Proportional to 190,949.70, 286,351.65 and 57,785.70
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Solution
The fourth proportional to 190,949.70, 286,351.65 and 57,785.70 is: 86,656.49
Step by Step Solution
- Step 1: Write the proportion equation
190,949.70 : 286,351.65 = 57,785.70 : x - Step 2: Convert to fraction form
190,949.70/286,351.65 = 57,785.70/x - Step 3: Cross multiply
190,949.70x = 286,351.65 × 57,785.70 - Step 4: Simplify right side
190,949.70x = 16,547,030,541.41 - Step 5: Solve for x
x = 16,547,030,541.41/190,949.70 - Step 6: Final answer
x = 86,656.49
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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.