Finding the Fourth Proportional to 258,526.08, 387,777.84 and 81,029.04
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Solution
The fourth proportional to 258,526.08, 387,777.84 and 81,029.04 is: 121,540.02
Step by Step Solution
- Step 1: Write the proportion equation
258,526.08 : 387,777.84 = 81,029.04 : x - Step 2: Convert to fraction form
258,526.08/387,777.84 = 81,029.04/x - Step 3: Cross multiply
258,526.08x = 387,777.84 × 81,029.04 - Step 4: Simplify right side
258,526.08x = 31,421,266,108.47 - Step 5: Solve for x
x = 31,421,266,108.47/258,526.08 - Step 6: Final answer
x = 121,540.02
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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.