Finding the Fourth Proportional to 216,649.08, 299,017.10 and 145,153.76
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Solution
The fourth proportional to 216,649.08, 299,017.10 and 145,153.76 is: 200,339.90
Step by Step Solution
- Step 1: Write the proportion equation
216,649.08 : 299,017.10 = 145,153.76 : x - Step 2: Convert to fraction form
216,649.08/299,017.10 = 145,153.76/x - Step 3: Cross multiply
216,649.08x = 299,017.10 × 145,153.76 - Step 4: Simplify right side
216,649.08x = 43,403,455,237.09 - Step 5: Solve for x
x = 43,403,455,237.09/216,649.08 - Step 6: Final answer
x = 200,339.90
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1.5x scale
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.