Finding the Fourth Proportional to 260,117.05, 390,206.84 and 91,602.55
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Solution
The fourth proportional to 260,117.05, 390,206.84 and 91,602.55 is: 137,414.83
Step by Step Solution
- Step 1: Write the proportion equation
260,117.05 : 390,206.84 = 91,602.55 : x - Step 2: Convert to fraction form
260,117.05/390,206.84 = 91,602.55/x - Step 3: Cross multiply
260,117.05x = 390,206.84 × 91,602.55 - Step 4: Simplify right side
260,117.05x = 35,743,939,406.27 - Step 5: Solve for x
x = 35,743,939,406.27/260,117.05 - Step 6: Final answer
x = 137,414.83
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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.