Finding the Fourth Proportional to 313,386.21, 432,472.97 and 170,146.28
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Solution
The fourth proportional to 313,386.21, 432,472.97 and 170,146.28 is: 234,801.86
Step by Step Solution
- Step 1: Write the proportion equation
313,386.21 : 432,472.97 = 170,146.28 : x - Step 2: Convert to fraction form
313,386.21/432,472.97 = 170,146.28/x - Step 3: Cross multiply
313,386.21x = 432,472.97 × 170,146.28 - Step 4: Simplify right side
313,386.21x = 73,583,664,032.96 - Step 5: Solve for x
x = 73,583,664,032.96/313,386.21 - Step 6: Final answer
x = 234,801.86
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1.5x scale
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.