Finding the Fourth Proportional to 211,780.63, 292,283.61 and 121,124.02
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Solution
The fourth proportional to 211,780.63, 292,283.61 and 121,124.02 is: 167,166.20
Step by Step Solution
- Step 1: Write the proportion equation
211,780.63 : 292,283.61 = 121,124.02 : x - Step 2: Convert to fraction form
211,780.63/292,283.61 = 121,124.02/x - Step 3: Cross multiply
211,780.63x = 292,283.61 × 121,124.02 - Step 4: Simplify right side
211,780.63x = 35,402,563,756.27 - Step 5: Solve for x
x = 35,402,563,756.27/211,780.63 - Step 6: Final answer
x = 167,166.20
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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.