Finding the Fourth Proportional to 150,322.78, 207,444.99 and 86,660.02
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Solution
The fourth proportional to 150,322.78, 207,444.99 and 86,660.02 is: 119,590.57
Step by Step Solution
- Step 1: Write the proportion equation
150,322.78 : 207,444.99 = 86,660.02 : x - Step 2: Convert to fraction form
150,322.78/207,444.99 = 86,660.02/x - Step 3: Cross multiply
150,322.78x = 207,444.99 × 86,660.02 - Step 4: Simplify right side
150,322.78x = 17,977,186,982.30 - Step 5: Solve for x
x = 17,977,186,982.30/150,322.78 - Step 6: Final answer
x = 119,590.57
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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.