Finding the Fourth Proportional to 510,153.12, 764,901.60 and 243,907.68
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Solution
The fourth proportional to 510,153.12, 764,901.60 and 243,907.68 is: 365,704.66
Step by Step Solution
- Step 1: Write the proportion equation
510,153.12 : 764,901.60 = 243,907.68 : x - Step 2: Convert to fraction form
510,153.12/764,901.60 = 243,907.68/x - Step 3: Cross multiply
510,153.12x = 764,901.60 × 243,907.68 - Step 4: Simplify right side
510,153.12x = 186,565,374,684.29 - Step 5: Solve for x
x = 186,565,374,684.29/510,153.12 - Step 6: Final answer
x = 365,704.66
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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.