Finding the Fourth Proportional to 307,074.75, 423,757.47 and 167,374.55
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Solution
The fourth proportional to 307,074.75, 423,757.47 and 167,374.55 is: 230,973.77
Step by Step Solution
- Step 1: Write the proportion equation
307,074.75 : 423,757.47 = 167,374.55 : x - Step 2: Convert to fraction form
307,074.75/423,757.47 = 167,374.55/x - Step 3: Cross multiply
307,074.75x = 423,757.47 × 167,374.55 - Step 4: Simplify right side
307,074.75x = 70,926,213,731.60 - Step 5: Solve for x
x = 70,926,213,731.60/307,074.75 - Step 6: Final answer
x = 230,973.77
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.