Finding the Fourth Proportional to 369,987.06, 554,984.78 and 130,108.09
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Solution
The fourth proportional to 369,987.06, 554,984.78 and 130,108.09 is: 195,163.61
Step by Step Solution
- Step 1: Write the proportion equation
369,987.06 : 554,984.78 = 130,108.09 : x - Step 2: Convert to fraction form
369,987.06/554,984.78 = 130,108.09/x - Step 3: Cross multiply
369,987.06x = 554,984.78 × 130,108.09 - Step 4: Simplify right side
369,987.06x = 72,208,009,704.87 - Step 5: Solve for x
x = 72,208,009,704.87/369,987.06 - Step 6: Final answer
x = 195,163.61
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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.