Finding the Fourth Proportional to 401,079.39, 553,436.94 and 239,875.62
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Solution
The fourth proportional to 401,079.39, 553,436.94 and 239,875.62 is: 330,996.89
Step by Step Solution
- Step 1: Write the proportion equation
401,079.39 : 553,436.94 = 239,875.62 : x - Step 2: Convert to fraction form
401,079.39/553,436.94 = 239,875.62/x - Step 3: Cross multiply
401,079.39x = 553,436.94 × 239,875.62 - Step 4: Simplify right side
401,079.39x = 132,756,029,113.40 - Step 5: Solve for x
x = 132,756,029,113.40/401,079.39 - Step 6: Final answer
x = 330,996.89
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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.