Finding the Fourth Proportional to 245,991.80, 368,987.70 and 133,725.80
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Solution
The fourth proportional to 245,991.80, 368,987.70 and 133,725.80 is: 200,588.70
Step by Step Solution
- Step 1: Write the proportion equation
245,991.80 : 368,987.70 = 133,725.80 : x - Step 2: Convert to fraction form
245,991.80/368,987.70 = 133,725.80/x - Step 3: Cross multiply
245,991.80x = 368,987.70 × 133,725.80 - Step 4: Simplify right side
245,991.80x = 49,343,175,372.66 - Step 5: Solve for x
x = 49,343,175,372.66/245,991.80 - Step 6: Final answer
x = 200,588.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.