Finding the Fourth Proportional to 239,537.84, 330,258.94 and 157,853.39
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Solution
The fourth proportional to 239,537.84, 330,258.94 and 157,853.39 is: 217,637.82
Step by Step Solution
- Step 1: Write the proportion equation
239,537.84 : 330,258.94 = 157,853.39 : x - Step 2: Convert to fraction form
239,537.84/330,258.94 = 157,853.39/x - Step 3: Cross multiply
239,537.84x = 330,258.94 × 157,853.39 - Step 4: Simplify right side
239,537.84x = 52,132,493,256.81 - Step 5: Solve for x
x = 52,132,493,256.81/239,537.84 - Step 6: Final answer
x = 217,637.82
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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.