Finding the Fourth Proportional to 230,317.18, 317,906.15 and 145,490.74
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Solution
The fourth proportional to 230,317.18, 317,906.15 and 145,490.74 is: 200,820.45
Step by Step Solution
- Step 1: Write the proportion equation
230,317.18 : 317,906.15 = 145,490.74 : x - Step 2: Convert to fraction form
230,317.18/317,906.15 = 145,490.74/x - Step 3: Cross multiply
230,317.18x = 317,906.15 × 145,490.74 - Step 4: Simplify right side
230,317.18x = 46,252,399,491.83 - Step 5: Solve for x
x = 46,252,399,491.83/230,317.18 - Step 6: Final answer
x = 200,820.45
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1.5x scale
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.