Finding the Fourth Proportional to 239,742.79, 330,800.76 and 153,717.14
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Solution
The fourth proportional to 239,742.79, 330,800.76 and 153,717.14 is: 212,101.26
Step by Step Solution
- Step 1: Write the proportion equation
239,742.79 : 330,800.76 = 153,717.14 : x - Step 2: Convert to fraction form
239,742.79/330,800.76 = 153,717.14/x - Step 3: Cross multiply
239,742.79x = 330,800.76 × 153,717.14 - Step 4: Simplify right side
239,742.79x = 50,849,747,564.03 - Step 5: Solve for x
x = 50,849,747,564.03/239,742.79 - Step 6: Final answer
x = 212,101.26
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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.