Finding the Fourth Proportional to 282,845.52, 390,336.84 and 155,530.80
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Solution
The fourth proportional to 282,845.52, 390,336.84 and 155,530.80 is: 214,638.02
Step by Step Solution
- Step 1: Write the proportion equation
282,845.52 : 390,336.84 = 155,530.80 : x - Step 2: Convert to fraction form
282,845.52/390,336.84 = 155,530.80/x - Step 3: Cross multiply
282,845.52x = 390,336.84 × 155,530.80 - Step 4: Simplify right side
282,845.52x = 60,709,400,994.67 - Step 5: Solve for x
x = 60,709,400,994.67/282,845.52 - Step 6: Final answer
x = 214,638.02
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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.