Finding the Fourth Proportional to 242,988.69, 335,323.35 and 135,558.80
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Solution
The fourth proportional to 242,988.69, 335,323.35 and 135,558.80 is: 187,070.56
Step by Step Solution
- Step 1: Write the proportion equation
242,988.69 : 335,323.35 = 135,558.80 : x - Step 2: Convert to fraction form
242,988.69/335,323.35 = 135,558.80/x - Step 3: Cross multiply
242,988.69x = 335,323.35 × 135,558.80 - Step 4: Simplify right side
242,988.69x = 45,456,030,937.98 - Step 5: Solve for x
x = 45,456,030,937.98/242,988.69 - Step 6: Final answer
x = 187,070.56
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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.