Finding the Fourth Proportional to 380,549.76, 571,178.88 and 193,701.12
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Solution
The fourth proportional to 380,549.76, 571,178.88 and 193,701.12 is: 290,731.99
Step by Step Solution
- Step 1: Write the proportion equation
380,549.76 : 571,178.88 = 193,701.12 : x - Step 2: Convert to fraction form
380,549.76/571,178.88 = 193,701.12/x - Step 3: Cross multiply
380,549.76x = 571,178.88 × 193,701.12 - Step 4: Simplify right side
380,549.76x = 110,637,988,776.35 - Step 5: Solve for x
x = 110,637,988,776.35/380,549.76 - Step 6: Final answer
x = 290,731.99
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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.