Finding the Fourth Proportional to 211,803.39, 292,289.49 and 115,007.40
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Solution
The fourth proportional to 211,803.39, 292,289.49 and 115,007.40 is: 158,710.65
Step by Step Solution
- Step 1: Write the proportion equation
211,803.39 : 292,289.49 = 115,007.40 : x - Step 2: Convert to fraction form
211,803.39/292,289.49 = 115,007.40/x - Step 3: Cross multiply
211,803.39x = 292,289.49 × 115,007.40 - Step 4: Simplify right side
211,803.39x = 33,615,454,292.23 - Step 5: Solve for x
x = 33,615,454,292.23/211,803.39 - Step 6: Final answer
x = 158,710.65
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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.