Finding the Fourth Proportional to 408,487.86, 563,483.16 and 245,102.13
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Solution
The fourth proportional to 408,487.86, 563,483.16 and 245,102.13 is: 338,102.88
Step by Step Solution
- Step 1: Write the proportion equation
408,487.86 : 563,483.16 = 245,102.13 : x - Step 2: Convert to fraction form
408,487.86/563,483.16 = 245,102.13/x - Step 3: Cross multiply
408,487.86x = 563,483.16 × 245,102.13 - Step 4: Simplify right side
408,487.86x = 138,110,922,735.13 - Step 5: Solve for x
x = 138,110,922,735.13/408,487.86 - Step 6: Final answer
x = 338,102.88
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.