Finding the Fourth Proportional to 351,983.08, 485,266.74 and 279,626.05
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Solution
The fourth proportional to 351,983.08, 485,266.74 and 279,626.05 is: 385,510.64
Step by Step Solution
- Step 1: Write the proportion equation
351,983.08 : 485,266.74 = 279,626.05 : x - Step 2: Convert to fraction form
351,983.08/485,266.74 = 279,626.05/x - Step 3: Cross multiply
351,983.08x = 485,266.74 × 279,626.05 - Step 4: Simplify right side
351,983.08x = 135,693,221,702.58 - Step 5: Solve for x
x = 135,693,221,702.58/351,983.08 - Step 6: Final answer
x = 385,510.64
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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.