Finding the Fourth Proportional to 229,303.05, 316,467.40 and 138,659.66
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Solution
The fourth proportional to 229,303.05, 316,467.40 and 138,659.66 is: 191,367.99
Step by Step Solution
- Step 1: Write the proportion equation
229,303.05 : 316,467.40 = 138,659.66 : x - Step 2: Convert to fraction form
229,303.05/316,467.40 = 138,659.66/x - Step 3: Cross multiply
229,303.05x = 316,467.40 × 138,659.66 - Step 4: Simplify right side
229,303.05x = 43,881,262,085.08 - Step 5: Solve for x
x = 43,881,262,085.08/229,303.05 - Step 6: Final answer
x = 191,367.99
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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.