Finding the Fourth Proportional to 403,430.60, 605,145.90 and 122,961.80
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Solution
The fourth proportional to 403,430.60, 605,145.90 and 122,961.80 is: 184,442.70
Step by Step Solution
- Step 1: Write the proportion equation
403,430.60 : 605,145.90 = 122,961.80 : x - Step 2: Convert to fraction form
403,430.60/605,145.90 = 122,961.80/x - Step 3: Cross multiply
403,430.60x = 605,145.90 × 122,961.80 - Step 4: Simplify right side
403,430.60x = 74,409,829,126.62 - Step 5: Solve for x
x = 74,409,829,126.62/403,430.60 - Step 6: Final answer
x = 184,442.70
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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.