Finding the Fourth Proportional to 219,471.68, 302,922.08 and 155,829.44
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Solution
The fourth proportional to 219,471.68, 302,922.08 and 155,829.44 is: 215,080.95
Step by Step Solution
- Step 1: Write the proportion equation
219,471.68 : 302,922.08 = 155,829.44 : x - Step 2: Convert to fraction form
219,471.68/302,922.08 = 155,829.44/x - Step 3: Cross multiply
219,471.68x = 302,922.08 × 155,829.44 - Step 4: Simplify right side
219,471.68x = 47,204,178,090.04 - Step 5: Solve for x
x = 47,204,178,090.04/219,471.68 - Step 6: Final answer
x = 215,080.95
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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.