Finding the Fourth Proportional to 257,237.20, 385,966.52 and 124,217.02
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Solution
The fourth proportional to 257,237.20, 385,966.52 and 124,217.02 is: 186,378.99
Step by Step Solution
- Step 1: Write the proportion equation
257,237.20 : 385,966.52 = 124,217.02 : x - Step 2: Convert to fraction form
257,237.20/385,966.52 = 124,217.02/x - Step 3: Cross multiply
257,237.20x = 385,966.52 × 124,217.02 - Step 4: Simplify right side
257,237.20x = 47,943,608,383.25 - Step 5: Solve for x
x = 47,943,608,383.25/257,237.20 - Step 6: Final answer
x = 186,378.99
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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.