Finding the Fourth Proportional to 399,373.93, 550,199.37 and 278,295.49
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Solution
The fourth proportional to 399,373.93, 550,199.37 and 278,295.49 is: 383,395.09
Step by Step Solution
- Step 1: Write the proportion equation
399,373.93 : 550,199.37 = 278,295.49 : x - Step 2: Convert to fraction form
399,373.93/550,199.37 = 278,295.49/x - Step 3: Cross multiply
399,373.93x = 550,199.37 × 278,295.49 - Step 4: Simplify right side
399,373.93x = 153,118,003,271.84 - Step 5: Solve for x
x = 153,118,003,271.84/399,373.93 - Step 6: Final answer
x = 383,395.09
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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.