Finding the Fourth Proportional to 260,053.74, 390,135.78 and 91,567.26
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Solution
The fourth proportional to 260,053.74, 390,135.78 and 91,567.26 is: 137,370.32
Step by Step Solution
- Step 1: Write the proportion equation
260,053.74 : 390,135.78 = 91,567.26 : x - Step 2: Convert to fraction form
260,053.74/390,135.78 = 91,567.26/x - Step 3: Cross multiply
260,053.74x = 390,135.78 × 91,567.26 - Step 4: Simplify right side
260,053.74x = 35,723,664,402.56 - Step 5: Solve for x
x = 35,723,664,402.56/260,053.74 - Step 6: Final answer
x = 137,370.32
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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.