Finding the Fourth Proportional to 190,931.70, 286,324.65 and 57,767.70
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Solution
The fourth proportional to 190,931.70, 286,324.65 and 57,767.70 is: 86,629.49
Step by Step Solution
- Step 1: Write the proportion equation
190,931.70 : 286,324.65 = 57,767.70 : x - Step 2: Convert to fraction form
190,931.70/286,324.65 = 57,767.70/x - Step 3: Cross multiply
190,931.70x = 286,324.65 × 57,767.70 - Step 4: Simplify right side
190,931.70x = 16,540,316,483.81 - Step 5: Solve for x
x = 16,540,316,483.81/190,931.70 - Step 6: Final answer
x = 86,629.49
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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.