Finding the Fourth Proportional to 211,448.07, 291,798.05 and 115,954.74
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Solution
The fourth proportional to 211,448.07, 291,798.05 and 115,954.74 is: 160,017.38
Step by Step Solution
- Step 1: Write the proportion equation
211,448.07 : 291,798.05 = 115,954.74 : x - Step 2: Convert to fraction form
211,448.07/291,798.05 = 115,954.74/x - Step 3: Cross multiply
211,448.07x = 291,798.05 × 115,954.74 - Step 4: Simplify right side
211,448.07x = 33,835,366,440.48 - Step 5: Solve for x
x = 33,835,366,440.48/211,448.07 - Step 6: Final answer
x = 160,017.38
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Double scale
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Similar ratio
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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.