Finding the Fourth Proportional to 282,957.68, 390,486.75 and 153,898.76
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Solution
The fourth proportional to 282,957.68, 390,486.75 and 153,898.76 is: 212,383.09
Step by Step Solution
- Step 1: Write the proportion equation
282,957.68 : 390,486.75 = 153,898.76 : x - Step 2: Convert to fraction form
282,957.68/390,486.75 = 153,898.76/x - Step 3: Cross multiply
282,957.68x = 390,486.75 × 153,898.76 - Step 4: Simplify right side
282,957.68x = 60,095,426,621.43 - Step 5: Solve for x
x = 60,095,426,621.43/282,957.68 - Step 6: Final answer
x = 212,383.09
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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.