Finding the Fourth Proportional to 257,590.41, 386,496.87 and 139,344.99
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Solution
The fourth proportional to 257,590.41, 386,496.87 and 139,344.99 is: 209,077.67
Step by Step Solution
- Step 1: Write the proportion equation
257,590.41 : 386,496.87 = 139,344.99 : x - Step 2: Convert to fraction form
257,590.41/386,496.87 = 139,344.99/x - Step 3: Cross multiply
257,590.41x = 386,496.87 × 139,344.99 - Step 4: Simplify right side
257,590.41x = 53,856,402,485.18 - Step 5: Solve for x
x = 53,856,402,485.18/257,590.41 - Step 6: Final answer
x = 209,077.67
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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.