Finding the Fourth Proportional to 216,938.70, 291,934.12 and 216,938.70
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Solution
The fourth proportional to 216,938.70, 291,934.12 and 216,938.70 is: 291,934.12
Step by Step Solution
- Step 1: Write the proportion equation
216,938.70 : 291,934.12 = 216,938.70 : x - Step 2: Convert to fraction form
216,938.70/291,934.12 = 216,938.70/x - Step 3: Cross multiply
216,938.70x = 291,934.12 × 216,938.70 - Step 4: Simplify right side
216,938.70x = 63,331,808,478.44 - Step 5: Solve for x
x = 63,331,808,478.44/216,938.70 - Step 6: Final answer
x = 291,934.12
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.