Finding the Fourth Proportional to 313,625.30, 432,802.18 and 170,384.09
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Solution
The fourth proportional to 313,625.30, 432,802.18 and 170,384.09 is: 235,129.65
Step by Step Solution
- Step 1: Write the proportion equation
313,625.30 : 432,802.18 = 170,384.09 : x - Step 2: Convert to fraction form
313,625.30/432,802.18 = 170,384.09/x - Step 3: Cross multiply
313,625.30x = 432,802.18 × 170,384.09 - Step 4: Simplify right side
313,625.30x = 73,742,605,589.32 - Step 5: Solve for x
x = 73,742,605,589.32/313,625.30 - Step 6: Final answer
x = 235,129.65
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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.