Finding the Fourth Proportional to 150,302.80, 207,412.36 and 86,643.28
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Solution
The fourth proportional to 150,302.80, 207,412.36 and 86,643.28 is: 119,564.55
Step by Step Solution
- Step 1: Write the proportion equation
150,302.80 : 207,412.36 = 86,643.28 : x - Step 2: Convert to fraction form
150,302.80/207,412.36 = 86,643.28/x - Step 3: Cross multiply
150,302.80x = 207,412.36 × 86,643.28 - Step 4: Simplify right side
150,302.80x = 17,970,887,182.94 - Step 5: Solve for x
x = 17,970,887,182.94/150,302.80 - Step 6: Final answer
x = 119,564.55
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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.