Finding the Fourth Proportional to 242,315.33, 334,426.49 and 138,989.84
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Solution
The fourth proportional to 242,315.33, 334,426.49 and 138,989.84 is: 191,823.95
Step by Step Solution
- Step 1: Write the proportion equation
242,315.33 : 334,426.49 = 138,989.84 : x - Step 2: Convert to fraction form
242,315.33/334,426.49 = 138,989.84/x - Step 3: Cross multiply
242,315.33x = 334,426.49 × 138,989.84 - Step 4: Simplify right side
242,315.33x = 46,481,881,969.78 - Step 5: Solve for x
x = 46,481,881,969.78/242,315.33 - Step 6: Final answer
x = 191,823.95
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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.