Finding the Fourth Proportional to 438,349.70, 657,546.15 and 228,397.70
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Solution
The fourth proportional to 438,349.70, 657,546.15 and 228,397.70 is: 342,607.80
Step by Step Solution
- Step 1: Write the proportion equation
438,349.70 : 657,546.15 = 228,397.70 : x - Step 2: Convert to fraction form
438,349.70/657,546.15 = 228,397.70/x - Step 3: Cross multiply
438,349.70x = 657,546.15 × 228,397.70 - Step 4: Simplify right side
438,349.70x = 150,182,028,303.86 - Step 5: Solve for x
x = 150,182,028,303.86/438,349.70 - Step 6: Final answer
x = 342,607.80
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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.