Finding the Fourth Proportional to 153,045.36, 211,330.02 and 127,684.68
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Solution
The fourth proportional to 153,045.36, 211,330.02 and 127,684.68 is: 176,311.17
Step by Step Solution
- Step 1: Write the proportion equation
153,045.36 : 211,330.02 = 127,684.68 : x - Step 2: Convert to fraction form
153,045.36/211,330.02 = 127,684.68/x - Step 3: Cross multiply
153,045.36x = 211,330.02 × 127,684.68 - Step 4: Simplify right side
153,045.36x = 26,983,605,978.09 - Step 5: Solve for x
x = 26,983,605,978.09/153,045.36 - Step 6: Final answer
x = 176,311.17
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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.