Finding the Fourth Proportional to 313,203.09, 432,221.40 and 169,963.10
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Solution
The fourth proportional to 313,203.09, 432,221.40 and 169,963.10 is: 234,549.69
Step by Step Solution
- Step 1: Write the proportion equation
313,203.09 : 432,221.40 = 169,963.10 : x - Step 2: Convert to fraction form
313,203.09/432,221.40 = 169,963.10/x - Step 3: Cross multiply
313,203.09x = 432,221.40 × 169,963.10 - Step 4: Simplify right side
313,203.09x = 73,461,686,869.23 - Step 5: Solve for x
x = 73,461,686,869.23/313,203.09 - Step 6: Final answer
x = 234,549.69
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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.