Finding the Fourth Proportional to 211,389.54, 291,717.50 and 115,894.23
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Solution
The fourth proportional to 211,389.54, 291,717.50 and 115,894.23 is: 159,934.00
Step by Step Solution
- Step 1: Write the proportion equation
211,389.54 : 291,717.50 = 115,894.23 : x - Step 2: Convert to fraction form
211,389.54/291,717.50 = 115,894.23/x - Step 3: Cross multiply
211,389.54x = 291,717.50 × 115,894.23 - Step 4: Simplify right side
211,389.54x = 33,808,374,460.55 - Step 5: Solve for x
x = 33,808,374,460.55/211,389.54 - Step 6: Final answer
x = 159,934.00
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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.