Finding the Fourth Proportional to 292,802.40, 439,252.20 and 115,315.20
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Solution
The fourth proportional to 292,802.40, 439,252.20 and 115,315.20 is: 172,991.94
Step by Step Solution
- Step 1: Write the proportion equation
292,802.40 : 439,252.20 = 115,315.20 : x - Step 2: Convert to fraction form
292,802.40/439,252.20 = 115,315.20/x - Step 3: Cross multiply
292,802.40x = 439,252.20 × 115,315.20 - Step 4: Simplify right side
292,802.40x = 50,652,455,293.44 - Step 5: Solve for x
x = 50,652,455,293.44/292,802.40 - Step 6: Final answer
x = 172,991.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.