Finding the Fourth Proportional to 257,394.52, 355,204.20 and 144,218.08
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Solution
The fourth proportional to 257,394.52, 355,204.20 and 144,218.08 is: 199,020.82
Step by Step Solution
- Step 1: Write the proportion equation
257,394.52 : 355,204.20 = 144,218.08 : x - Step 2: Convert to fraction form
257,394.52/355,204.20 = 144,218.08/x - Step 3: Cross multiply
257,394.52x = 355,204.20 × 144,218.08 - Step 4: Simplify right side
257,394.52x = 51,226,867,731.94 - Step 5: Solve for x
x = 51,226,867,731.94/257,394.52 - Step 6: Final answer
x = 199,020.82
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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.