Finding the Fourth Proportional to 229,652.10, 316,846.73 and 138,979.08
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Solution
The fourth proportional to 229,652.10, 316,846.73 and 138,979.08 is: 191,746.85
Step by Step Solution
- Step 1: Write the proportion equation
229,652.10 : 316,846.73 = 138,979.08 : x - Step 2: Convert to fraction form
229,652.10/316,846.73 = 138,979.08/x - Step 3: Cross multiply
229,652.10x = 316,846.73 × 138,979.08 - Step 4: Simplify right side
229,652.10x = 44,035,066,341.51 - Step 5: Solve for x
x = 44,035,066,341.51/229,652.10 - Step 6: Final answer
x = 191,746.85
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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.