Finding the Fourth Proportional to 346,525.42, 478,673.12 and 261,129.90
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Solution
The fourth proportional to 346,525.42, 478,673.12 and 261,129.90 is: 360,711.96
Step by Step Solution
- Step 1: Write the proportion equation
346,525.42 : 478,673.12 = 261,129.90 : x - Step 2: Convert to fraction form
346,525.42/478,673.12 = 261,129.90/x - Step 3: Cross multiply
346,525.42x = 478,673.12 × 261,129.90 - Step 4: Simplify right side
346,525.42x = 124,995,863,958.29 - Step 5: Solve for x
x = 124,995,863,958.29/346,525.42 - Step 6: Final answer
x = 360,711.96
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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.