Finding the Fourth Proportional to 192,887.40, 266,153.58 and 121,216.68
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Solution
The fourth proportional to 192,887.40, 266,153.58 and 121,216.68 is: 167,259.52
Step by Step Solution
- Step 1: Write the proportion equation
192,887.40 : 266,153.58 = 121,216.68 : x - Step 2: Convert to fraction form
192,887.40/266,153.58 = 121,216.68/x - Step 3: Cross multiply
192,887.40x = 266,153.58 × 121,216.68 - Step 4: Simplify right side
192,887.40x = 32,262,253,337.71 - Step 5: Solve for x
x = 32,262,253,337.71/192,887.40 - Step 6: Final answer
x = 167,259.52
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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.