Finding the Fourth Proportional to 305,775.42, 458,317.08 and 155,698.70
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Solution
The fourth proportional to 305,775.42, 458,317.08 and 155,698.70 is: 233,371.84
Step by Step Solution
- Step 1: Write the proportion equation
305,775.42 : 458,317.08 = 155,698.70 : x - Step 2: Convert to fraction form
305,775.42/458,317.08 = 155,698.70/x - Step 3: Cross multiply
305,775.42x = 458,317.08 × 155,698.70 - Step 4: Simplify right side
305,775.42x = 71,359,371,252.21 - Step 5: Solve for x
x = 71,359,371,252.21/305,775.42 - Step 6: Final answer
x = 233,371.84
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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.