Finding the Fourth Proportional to 357,625.45, 536,438.58 and 91,386.19
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Solution
The fourth proportional to 357,625.45, 536,438.58 and 91,386.19 is: 137,079.39
Step by Step Solution
- Step 1: Write the proportion equation
357,625.45 : 536,438.58 = 91,386.19 : x - Step 2: Convert to fraction form
357,625.45/536,438.58 = 91,386.19/x - Step 3: Cross multiply
357,625.45x = 536,438.58 × 91,386.19 - Step 4: Simplify right side
357,625.45x = 49,023,077,995.21 - Step 5: Solve for x
x = 49,023,077,995.21/357,625.45 - Step 6: Final answer
x = 137,079.39
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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.