Finding the Fourth Proportional to 260,390.96, 390,245.04 and 148,122.80
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Solution
The fourth proportional to 260,390.96, 390,245.04 and 148,122.80 is: 221,990.00
Step by Step Solution
- Step 1: Write the proportion equation
260,390.96 : 390,245.04 = 148,122.80 : x - Step 2: Convert to fraction form
260,390.96/390,245.04 = 148,122.80/x - Step 3: Cross multiply
260,390.96x = 390,245.04 × 148,122.80 - Step 4: Simplify right side
260,390.96x = 57,804,188,010.91 - Step 5: Solve for x
x = 57,804,188,010.91/260,390.96 - Step 6: Final answer
x = 221,990.00
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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.