Finding the Fourth Proportional to 254,157.17, 381,125.02 and 85,646.09
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Solution
The fourth proportional to 254,157.17, 381,125.02 and 85,646.09 is: 128,431.82
Step by Step Solution
- Step 1: Write the proportion equation
254,157.17 : 381,125.02 = 85,646.09 : x - Step 2: Convert to fraction form
254,157.17/381,125.02 = 85,646.09/x - Step 3: Cross multiply
254,157.17x = 381,125.02 × 85,646.09 - Step 4: Simplify right side
254,157.17x = 32,641,868,502.87 - Step 5: Solve for x
x = 32,641,868,502.87/254,157.17 - Step 6: Final answer
x = 128,431.82
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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.