Finding the Fourth Proportional to 211,126.66, 291,343.68 and 115,631.32
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Solution
The fourth proportional to 211,126.66, 291,343.68 and 115,631.32 is: 159,565.14
Step by Step Solution
- Step 1: Write the proportion equation
211,126.66 : 291,343.68 = 115,631.32 : x - Step 2: Convert to fraction form
211,126.66/291,343.68 = 115,631.32/x - Step 3: Cross multiply
211,126.66x = 291,343.68 × 115,631.32 - Step 4: Simplify right side
211,126.66x = 33,688,454,292.06 - Step 5: Solve for x
x = 33,688,454,292.06/211,126.66 - Step 6: Final answer
x = 159,565.14
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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.