Finding the Fourth Proportional to 493,617.62, 740,368.51 and 138,661.85
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Solution
The fourth proportional to 493,617.62, 740,368.51 and 138,661.85 is: 207,976.50
Step by Step Solution
- Step 1: Write the proportion equation
493,617.62 : 740,368.51 = 138,661.85 : x - Step 2: Convert to fraction form
493,617.62/740,368.51 = 138,661.85/x - Step 3: Cross multiply
493,617.62x = 740,368.51 × 138,661.85 - Step 4: Simplify right side
493,617.62x = 102,660,867,278.34 - Step 5: Solve for x
x = 102,660,867,278.34/493,617.62 - Step 6: Final answer
x = 207,976.50
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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.