Finding the Fourth Proportional to 438,931.28, 658,459.63 and 135,351.08
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Solution
The fourth proportional to 438,931.28, 658,459.63 and 135,351.08 is: 203,045.95
Step by Step Solution
- Step 1: Write the proportion equation
438,931.28 : 658,459.63 = 135,351.08 : x - Step 2: Convert to fraction form
438,931.28/658,459.63 = 135,351.08/x - Step 3: Cross multiply
438,931.28x = 658,459.63 × 135,351.08 - Step 4: Simplify right side
438,931.28x = 89,123,219,551.10 - Step 5: Solve for x
x = 89,123,219,551.10/438,931.28 - Step 6: Final answer
x = 203,045.95
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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.