Finding the Fourth Proportional to 487,055.81, 672,134.80 and 272,195.75
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Solution
The fourth proportional to 487,055.81, 672,134.80 and 272,195.75 is: 375,628.90
Step by Step Solution
- Step 1: Write the proportion equation
487,055.81 : 672,134.80 = 272,195.75 : x - Step 2: Convert to fraction form
487,055.81/672,134.80 = 272,195.75/x - Step 3: Cross multiply
487,055.81x = 672,134.80 × 272,195.75 - Step 4: Simplify right side
487,055.81x = 182,952,235,987.10 - Step 5: Solve for x
x = 182,952,235,987.10/487,055.81 - Step 6: Final answer
x = 375,628.90
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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.