Finding the Fourth Proportional to 211,176.41, 291,430.16 and 115,688.94
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Solution
The fourth proportional to 211,176.41, 291,430.16 and 115,688.94 is: 159,654.42
Step by Step Solution
- Step 1: Write the proportion equation
211,176.41 : 291,430.16 = 115,688.94 : x - Step 2: Convert to fraction form
211,176.41/291,430.16 = 115,688.94/x - Step 3: Cross multiply
211,176.41x = 291,430.16 × 115,688.94 - Step 4: Simplify right side
211,176.41x = 33,715,245,715.99 - Step 5: Solve for x
x = 33,715,245,715.99/211,176.41 - Step 6: Final answer
x = 159,654.42
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.