Finding the Fourth Proportional to 216,870.24, 299,271.36 and 126,228.96
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Solution
The fourth proportional to 216,870.24, 299,271.36 and 126,228.96 is: 174,190.39
Step by Step Solution
- Step 1: Write the proportion equation
216,870.24 : 299,271.36 = 126,228.96 : x - Step 2: Convert to fraction form
216,870.24/299,271.36 = 126,228.96/x - Step 3: Cross multiply
216,870.24x = 299,271.36 × 126,228.96 - Step 4: Simplify right side
216,870.24x = 37,776,712,530.59 - Step 5: Solve for x
x = 37,776,712,530.59/216,870.24 - Step 6: Final answer
x = 174,190.39
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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.