Finding the Fourth Proportional to 245,332.24, 338,558.70 and 136,434.21
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Solution
The fourth proportional to 245,332.24, 338,558.70 and 136,434.21 is: 188,279.32
Step by Step Solution
- Step 1: Write the proportion equation
245,332.24 : 338,558.70 = 136,434.21 : x - Step 2: Convert to fraction form
245,332.24/338,558.70 = 136,434.21/x - Step 3: Cross multiply
245,332.24x = 338,558.70 × 136,434.21 - Step 4: Simplify right side
245,332.24x = 46,190,988,867.87 - Step 5: Solve for x
x = 46,190,988,867.87/245,332.24 - Step 6: Final answer
x = 188,279.32
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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.