Finding the Fourth Proportional to 239,778.70, 330,873.64 and 153,585.62
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Solution
The fourth proportional to 239,778.70, 330,873.64 and 153,585.62 is: 211,934.73
Step by Step Solution
- Step 1: Write the proportion equation
239,778.70 : 330,873.64 = 153,585.62 : x - Step 2: Convert to fraction form
239,778.70/330,873.64 = 153,585.62/x - Step 3: Cross multiply
239,778.70x = 330,873.64 × 153,585.62 - Step 4: Simplify right side
239,778.70x = 50,817,433,141.06 - Step 5: Solve for x
x = 50,817,433,141.06/239,778.70 - Step 6: Final answer
x = 211,934.73
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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.