Finding the Fourth Proportional to 260,124.30, 390,186.45 and 73,135.80
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Solution
The fourth proportional to 260,124.30, 390,186.45 and 73,135.80 is: 109,703.70
Step by Step Solution
- Step 1: Write the proportion equation
260,124.30 : 390,186.45 = 73,135.80 : x - Step 2: Convert to fraction form
260,124.30/390,186.45 = 73,135.80/x - Step 3: Cross multiply
260,124.30x = 390,186.45 × 73,135.80 - Step 4: Simplify right side
260,124.30x = 28,536,598,169.91 - Step 5: Solve for x
x = 28,536,598,169.91/260,124.30 - Step 6: Final answer
x = 109,703.70
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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.