Finding the Fourth Proportional to 348,756.75, 523,139.99 and 99,438.75
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Solution
The fourth proportional to 348,756.75, 523,139.99 and 99,438.75 is: 149,159.51
Step by Step Solution
- Step 1: Write the proportion equation
348,756.75 : 523,139.99 = 99,438.75 : x - Step 2: Convert to fraction form
348,756.75/523,139.99 = 99,438.75/x - Step 3: Cross multiply
348,756.75x = 523,139.99 × 99,438.75 - Step 4: Simplify right side
348,756.75x = 52,020,386,183.42 - Step 5: Solve for x
x = 52,020,386,183.42/348,756.75 - Step 6: Final answer
x = 149,159.51
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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.