Finding the Fourth Proportional to 203,315.84, 280,567.76 and 112,675.68
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Solution
The fourth proportional to 203,315.84, 280,567.76 and 112,675.68 is: 155,487.95
Step by Step Solution
- Step 1: Write the proportion equation
203,315.84 : 280,567.76 = 112,675.68 : x - Step 2: Convert to fraction form
203,315.84/280,567.76 = 112,675.68/x - Step 3: Cross multiply
203,315.84x = 280,567.76 × 112,675.68 - Step 4: Simplify right side
203,315.84x = 31,613,163,144.08 - Step 5: Solve for x
x = 31,613,163,144.08/203,315.84 - Step 6: Final answer
x = 155,487.95
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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.