Finding the Fourth Proportional to 312,802.68, 469,156.50 and 102,435.96
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Solution
The fourth proportional to 312,802.68, 469,156.50 and 102,435.96 is: 153,638.38
Step by Step Solution
- Step 1: Write the proportion equation
312,802.68 : 469,156.50 = 102,435.96 : x - Step 2: Convert to fraction form
312,802.68/469,156.50 = 102,435.96/x - Step 3: Cross multiply
312,802.68x = 469,156.50 × 102,435.96 - Step 4: Simplify right side
312,802.68x = 48,058,496,467.74 - Step 5: Solve for x
x = 48,058,496,467.74/312,802.68 - Step 6: Final answer
x = 153,638.38
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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.