Finding the Fourth Proportional to 216,783.84, 299,176.83 and 124,929.84
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Solution
The fourth proportional to 216,783.84, 299,176.83 and 124,929.84 is: 172,411.90
Step by Step Solution
- Step 1: Write the proportion equation
216,783.84 : 299,176.83 = 124,929.84 : x - Step 2: Convert to fraction form
216,783.84/299,176.83 = 124,929.84/x - Step 3: Cross multiply
216,783.84x = 299,176.83 × 124,929.84 - Step 4: Simplify right side
216,783.84x = 37,376,112,878.96 - Step 5: Solve for x
x = 37,376,112,878.96/216,783.84 - Step 6: Final answer
x = 172,411.90
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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.