Finding the Fourth Proportional to 202,970.62, 280,099.99 and 112,332.84
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Solution
The fourth proportional to 202,970.62, 280,099.99 and 112,332.84 is: 155,019.61
Step by Step Solution
- Step 1: Write the proportion equation
202,970.62 : 280,099.99 = 112,332.84 : x - Step 2: Convert to fraction form
202,970.62/280,099.99 = 112,332.84/x - Step 3: Cross multiply
202,970.62x = 280,099.99 × 112,332.84 - Step 4: Simplify right side
202,970.62x = 31,464,427,360.67 - Step 5: Solve for x
x = 31,464,427,360.67/202,970.62 - Step 6: Final answer
x = 155,019.61
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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.