Finding the Fourth Proportional to 318,722.73, 439,820.66 and 175,455.09
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Solution
The fourth proportional to 318,722.73, 439,820.66 and 175,455.09 is: 242,118.82
Step by Step Solution
- Step 1: Write the proportion equation
318,722.73 : 439,820.66 = 175,455.09 : x - Step 2: Convert to fraction form
318,722.73/439,820.66 = 175,455.09/x - Step 3: Cross multiply
318,722.73x = 439,820.66 × 175,455.09 - Step 4: Simplify right side
318,722.73x = 77,168,772,606.88 - Step 5: Solve for x
x = 77,168,772,606.88/318,722.73 - Step 6: Final answer
x = 242,118.82
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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.