Finding the Fourth Proportional to 211,097.76, 291,315.84 and 115,605.12
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Solution
The fourth proportional to 211,097.76, 291,315.84 and 115,605.12 is: 159,535.58
Step by Step Solution
- Step 1: Write the proportion equation
211,097.76 : 291,315.84 = 115,605.12 : x - Step 2: Convert to fraction form
211,097.76/291,315.84 = 115,605.12/x - Step 3: Cross multiply
211,097.76x = 291,315.84 × 115,605.12 - Step 4: Simplify right side
211,097.76x = 33,677,602,641.10 - Step 5: Solve for x
x = 33,677,602,641.10/211,097.76 - Step 6: Final answer
x = 159,535.58
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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.