Finding the Fourth Proportional to 257,645.80, 386,468.70 and 195,437.80
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Solution
The fourth proportional to 257,645.80, 386,468.70 and 195,437.80 is: 293,156.70
Step by Step Solution
- Step 1: Write the proportion equation
257,645.80 : 386,468.70 = 195,437.80 : x - Step 2: Convert to fraction form
257,645.80/386,468.70 = 195,437.80/x - Step 3: Cross multiply
257,645.80x = 386,468.70 × 195,437.80 - Step 4: Simplify right side
257,645.80x = 75,530,592,496.86 - Step 5: Solve for x
x = 75,530,592,496.86/257,645.80 - Step 6: Final answer
x = 293,156.70
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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.