Finding the Fourth Proportional to 390,528.95, 585,864.50 and 177,300.09
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Solution
The fourth proportional to 390,528.95, 585,864.50 and 177,300.09 is: 265,982.40
Step by Step Solution
- Step 1: Write the proportion equation
390,528.95 : 585,864.50 = 177,300.09 : x - Step 2: Convert to fraction form
390,528.95/585,864.50 = 177,300.09/x - Step 3: Cross multiply
390,528.95x = 585,864.50 × 177,300.09 - Step 4: Simplify right side
390,528.95x = 103,873,827,691.31 - Step 5: Solve for x
x = 103,873,827,691.31/390,528.95 - Step 6: Final answer
x = 265,982.40
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.