Finding the Fourth Proportional to 199,417.05, 275,297.09 and 153,993.06
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Solution
The fourth proportional to 199,417.05, 275,297.09 and 153,993.06 is: 212,588.85
Step by Step Solution
- Step 1: Write the proportion equation
199,417.05 : 275,297.09 = 153,993.06 : x - Step 2: Convert to fraction form
199,417.05/275,297.09 = 153,993.06/x - Step 3: Cross multiply
199,417.05x = 275,297.09 × 153,993.06 - Step 4: Simplify right side
199,417.05x = 42,393,842,343.73 - Step 5: Solve for x
x = 42,393,842,343.73/199,417.05 - Step 6: Final answer
x = 212,588.85
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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.