Finding the Fourth Proportional to 212,152.76, 292,746.26 and 121,503.32
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Solution
The fourth proportional to 212,152.76, 292,746.26 and 121,503.32 is: 167,660.52
Step by Step Solution
- Step 1: Write the proportion equation
212,152.76 : 292,746.26 = 121,503.32 : x - Step 2: Convert to fraction form
212,152.76/292,746.26 = 121,503.32/x - Step 3: Cross multiply
212,152.76x = 292,746.26 × 121,503.32 - Step 4: Simplify right side
212,152.76x = 35,569,642,507.58 - Step 5: Solve for x
x = 35,569,642,507.58/212,152.76 - Step 6: Final answer
x = 167,660.52
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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.