Finding the Fourth Proportional to 216,159.36, 298,304.94 and 135,590.28
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Solution
The fourth proportional to 216,159.36, 298,304.94 and 135,590.28 is: 187,117.74
Step by Step Solution
- Step 1: Write the proportion equation
216,159.36 : 298,304.94 = 135,590.28 : x - Step 2: Convert to fraction form
216,159.36/298,304.94 = 135,590.28/x - Step 3: Cross multiply
216,159.36x = 298,304.94 × 135,590.28 - Step 4: Simplify right side
216,159.36x = 40,447,250,339.98 - Step 5: Solve for x
x = 40,447,250,339.98/216,159.36 - Step 6: Final answer
x = 187,117.74
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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.