Finding the Fourth Proportional to 282,752.76, 390,193.56 and 155,425.68
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Solution
The fourth proportional to 282,752.76, 390,193.56 and 155,425.68 is: 214,484.55
Step by Step Solution
- Step 1: Write the proportion equation
282,752.76 : 390,193.56 = 155,425.68 : x - Step 2: Convert to fraction form
282,752.76/390,193.56 = 155,425.68/x - Step 3: Cross multiply
282,752.76x = 390,193.56 × 155,425.68 - Step 4: Simplify right side
282,752.76x = 60,646,099,394.62 - Step 5: Solve for x
x = 60,646,099,394.62/282,752.76 - Step 6: Final answer
x = 214,484.55
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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.