Finding the Fourth Proportional to 409,219.80, 613,829.70 and 124,909.80
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Solution
The fourth proportional to 409,219.80, 613,829.70 and 124,909.80 is: 187,364.70
Step by Step Solution
- Step 1: Write the proportion equation
409,219.80 : 613,829.70 = 124,909.80 : x - Step 2: Convert to fraction form
409,219.80/613,829.70 = 124,909.80/x - Step 3: Cross multiply
409,219.80x = 613,829.70 × 124,909.80 - Step 4: Simplify right side
409,219.80x = 76,673,345,061.06 - Step 5: Solve for x
x = 76,673,345,061.06/409,219.80 - Step 6: Final answer
x = 187,364.70
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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.