Finding the Fourth Proportional to 282,967.68, 390,495.60 and 155,652.96
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Solution
The fourth proportional to 282,967.68, 390,495.60 and 155,652.96 is: 214,801.20
Step by Step Solution
- Step 1: Write the proportion equation
282,967.68 : 390,495.60 = 155,652.96 : x - Step 2: Convert to fraction form
282,967.68/390,495.60 = 155,652.96/x - Step 3: Cross multiply
282,967.68x = 390,495.60 × 155,652.96 - Step 4: Simplify right side
282,967.68x = 60,781,796,006.98 - Step 5: Solve for x
x = 60,781,796,006.98/282,967.68 - Step 6: Final answer
x = 214,801.20
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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.