Finding the Fourth Proportional to 202,160.15, 279,070.70 and 130,575.09
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Solution
The fourth proportional to 202,160.15, 279,070.70 and 130,575.09 is: 180,251.55
Step by Step Solution
- Step 1: Write the proportion equation
202,160.15 : 279,070.70 = 130,575.09 : x - Step 2: Convert to fraction form
202,160.15/279,070.70 = 130,575.09/x - Step 3: Cross multiply
202,160.15x = 279,070.70 × 130,575.09 - Step 4: Simplify right side
202,160.15x = 36,439,681,327.21 - Step 5: Solve for x
x = 36,439,681,327.21/202,160.15 - Step 6: Final answer
x = 180,251.55
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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.