Finding the Fourth Proportional to 254,355.12, 351,014.48 and 139,644.44
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Solution
The fourth proportional to 254,355.12, 351,014.48 and 139,644.44 is: 192,711.75
Step by Step Solution
- Step 1: Write the proportion equation
254,355.12 : 351,014.48 = 139,644.44 : x - Step 2: Convert to fraction form
254,355.12/351,014.48 = 139,644.44/x - Step 3: Cross multiply
254,355.12x = 351,014.48 × 139,644.44 - Step 4: Simplify right side
254,355.12x = 49,017,219,878.17 - Step 5: Solve for x
x = 49,017,219,878.17/254,355.12 - Step 6: Final answer
x = 192,711.75
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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.