Finding the Fourth Proportional to 272,988.06, 409,483.14 and 83,447.70
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Solution
The fourth proportional to 272,988.06, 409,483.14 and 83,447.70 is: 125,171.87
Step by Step Solution
- Step 1: Write the proportion equation
272,988.06 : 409,483.14 = 83,447.70 : x - Step 2: Convert to fraction form
272,988.06/409,483.14 = 83,447.70/x - Step 3: Cross multiply
272,988.06x = 409,483.14 × 83,447.70 - Step 4: Simplify right side
272,988.06x = 34,170,426,221.78 - Step 5: Solve for x
x = 34,170,426,221.78/272,988.06 - Step 6: Final answer
x = 125,171.87
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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.