Finding the Fourth Proportional to 315,642.68, 435,473.71 and 186,554.06
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Solution
The fourth proportional to 315,642.68, 435,473.71 and 186,554.06 is: 257,377.70
Step by Step Solution
- Step 1: Write the proportion equation
315,642.68 : 435,473.71 = 186,554.06 : x - Step 2: Convert to fraction form
315,642.68/435,473.71 = 186,554.06/x - Step 3: Cross multiply
315,642.68x = 435,473.71 × 186,554.06 - Step 4: Simplify right side
315,642.68x = 81,239,385,980.01 - Step 5: Solve for x
x = 81,239,385,980.01/315,642.68 - Step 6: Final answer
x = 257,377.70
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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.