Finding the Fourth Proportional to 194,965.80, 292,448.70 and 121,237.80
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Solution
The fourth proportional to 194,965.80, 292,448.70 and 121,237.80 is: 181,856.70
Step by Step Solution
- Step 1: Write the proportion equation
194,965.80 : 292,448.70 = 121,237.80 : x - Step 2: Convert to fraction form
194,965.80/292,448.70 = 121,237.80/x - Step 3: Cross multiply
194,965.80x = 292,448.70 × 121,237.80 - Step 4: Simplify right side
194,965.80x = 35,455,837,000.86 - Step 5: Solve for x
x = 35,455,837,000.86/194,965.80 - Step 6: Final answer
x = 181,856.70
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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.