Finding the Fourth Proportional to 272,985.68, 409,479.58 and 83,445.32
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Solution
The fourth proportional to 272,985.68, 409,479.58 and 83,445.32 is: 125,168.31
Step by Step Solution
- Step 1: Write the proportion equation
272,985.68 : 409,479.58 = 83,445.32 : x - Step 2: Convert to fraction form
272,985.68/409,479.58 = 83,445.32/x - Step 3: Cross multiply
272,985.68x = 409,479.58 × 83,445.32 - Step 4: Simplify right side
272,985.68x = 34,169,155,245.19 - Step 5: Solve for x
x = 34,169,155,245.19/272,985.68 - Step 6: Final answer
x = 125,168.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.