Finding the Fourth Proportional to 387,216.12, 580,973.08 and 187,521.14
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Solution
The fourth proportional to 387,216.12, 580,973.08 and 187,521.14 is: 281,353.82
Step by Step Solution
- Step 1: Write the proportion equation
387,216.12 : 580,973.08 = 187,521.14 : x - Step 2: Convert to fraction form
387,216.12/580,973.08 = 187,521.14/x - Step 3: Cross multiply
387,216.12x = 580,973.08 × 187,521.14 - Step 4: Simplify right side
387,216.12x = 108,944,734,270.91 - Step 5: Solve for x
x = 108,944,734,270.91/387,216.12 - Step 6: Final answer
x = 281,353.82
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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.