Finding the Fourth Proportional to 223,279.32, 308,124.18 and 121,303.98
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Solution
The fourth proportional to 223,279.32, 308,124.18 and 121,303.98 is: 167,398.80
Step by Step Solution
- Step 1: Write the proportion equation
223,279.32 : 308,124.18 = 121,303.98 : x - Step 2: Convert to fraction form
223,279.32/308,124.18 = 121,303.98/x - Step 3: Cross multiply
223,279.32x = 308,124.18 × 121,303.98 - Step 4: Simplify right side
223,279.32x = 37,376,689,368.24 - Step 5: Solve for x
x = 37,376,689,368.24/223,279.32 - Step 6: Final answer
x = 167,398.80
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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.