Finding the Fourth Proportional to 257,905.53, 355,893.66 and 143,177.49
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Solution
The fourth proportional to 257,905.53, 355,893.66 and 143,177.49 is: 197,576.07
Step by Step Solution
- Step 1: Write the proportion equation
257,905.53 : 355,893.66 = 143,177.49 : x - Step 2: Convert to fraction form
257,905.53/355,893.66 = 143,177.49/x - Step 3: Cross multiply
257,905.53x = 355,893.66 × 143,177.49 - Step 4: Simplify right side
257,905.53x = 50,955,960,945.71 - Step 5: Solve for x
x = 50,955,960,945.71/257,905.53 - Step 6: Final answer
x = 197,576.07
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1.5x scale
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.