Finding the Fourth Proportional to 309,259.68, 463,929.84 and 87,649.44
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Solution
The fourth proportional to 309,259.68, 463,929.84 and 87,649.44 is: 131,485.59
Step by Step Solution
- Step 1: Write the proportion equation
309,259.68 : 463,929.84 = 87,649.44 : x - Step 2: Convert to fraction form
309,259.68/463,929.84 = 87,649.44/x - Step 3: Cross multiply
309,259.68x = 463,929.84 × 87,649.44 - Step 4: Simplify right side
309,259.68x = 40,663,190,675.29 - Step 5: Solve for x
x = 40,663,190,675.29/309,259.68 - Step 6: Final answer
x = 131,485.59
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.