Finding the Fourth Proportional to 211,119.84, 291,345.36 and 115,626.78
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Solution
The fourth proportional to 211,119.84, 291,345.36 and 115,626.78 is: 159,564.95
Step by Step Solution
- Step 1: Write the proportion equation
211,119.84 : 291,345.36 = 115,626.78 : x - Step 2: Convert to fraction form
211,119.84/291,345.36 = 115,626.78/x - Step 3: Cross multiply
211,119.84x = 291,345.36 × 115,626.78 - Step 4: Simplify right side
211,119.84x = 33,687,325,844.74 - Step 5: Solve for x
x = 33,687,325,844.74/211,119.84 - Step 6: Final answer
x = 159,564.95
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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.