Finding the Fourth Proportional to 438,617.10, 657,415.35 and 201,983.70
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Solution
The fourth proportional to 438,617.10, 657,415.35 and 201,983.70 is: 302,740.56
Step by Step Solution
- Step 1: Write the proportion equation
438,617.10 : 657,415.35 = 201,983.70 : x - Step 2: Convert to fraction form
438,617.10/657,415.35 = 201,983.70/x - Step 3: Cross multiply
438,617.10x = 657,415.35 × 201,983.70 - Step 4: Simplify right side
438,617.10x = 132,787,184,829.80 - Step 5: Solve for x
x = 132,787,184,829.80/438,617.10 - Step 6: Final answer
x = 302,740.56
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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.