Finding the Fourth Proportional to 257,905.08, 355,908.06 and 144,727.56
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Solution
The fourth proportional to 257,905.08, 355,908.06 and 144,727.56 is: 199,723.50
Step by Step Solution
- Step 1: Write the proportion equation
257,905.08 : 355,908.06 = 144,727.56 : x - Step 2: Convert to fraction form
257,905.08/355,908.06 = 144,727.56/x - Step 3: Cross multiply
257,905.08x = 355,908.06 × 144,727.56 - Step 4: Simplify right side
257,905.08x = 51,509,705,108.13 - Step 5: Solve for x
x = 51,509,705,108.13/257,905.08 - Step 6: Final answer
x = 199,723.50
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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.