Finding the Fourth Proportional to 475,741.26, 713,644.74 and 138,776.58
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Solution
The fourth proportional to 475,741.26, 713,644.74 and 138,776.58 is: 208,174.45
Step by Step Solution
- Step 1: Write the proportion equation
475,741.26 : 713,644.74 = 138,776.58 : x - Step 2: Convert to fraction form
475,741.26/713,644.74 = 138,776.58/x - Step 3: Cross multiply
475,741.26x = 713,644.74 × 138,776.58 - Step 4: Simplify right side
475,741.26x = 99,037,176,352.19 - Step 5: Solve for x
x = 99,037,176,352.19/475,741.26 - Step 6: Final answer
x = 208,174.45
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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.