Finding the Fourth Proportional to 216,723.90, 299,197.08 and 130,698.26
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Solution
The fourth proportional to 216,723.90, 299,197.08 and 130,698.26 is: 180,434.81
Step by Step Solution
- Step 1: Write the proportion equation
216,723.90 : 299,197.08 = 130,698.26 : x - Step 2: Convert to fraction form
216,723.90/299,197.08 = 130,698.26/x - Step 3: Cross multiply
216,723.90x = 299,197.08 × 130,698.26 - Step 4: Simplify right side
216,723.90x = 39,104,536,257.10 - Step 5: Solve for x
x = 39,104,536,257.10/216,723.90 - Step 6: Final answer
x = 180,434.81
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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.