Finding the Fourth Proportional to 449,119.30, 619,701.70 and 255,515.70
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Solution
The fourth proportional to 449,119.30, 619,701.70 and 255,515.70 is: 352,564.48
Step by Step Solution
- Step 1: Write the proportion equation
449,119.30 : 619,701.70 = 255,515.70 : x - Step 2: Convert to fraction form
449,119.30/619,701.70 = 255,515.70/x - Step 3: Cross multiply
449,119.30x = 619,701.70 × 255,515.70 - Step 4: Simplify right side
449,119.30x = 158,343,513,666.69 - Step 5: Solve for x
x = 158,343,513,666.69/449,119.30 - Step 6: Final answer
x = 352,564.48
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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.