Finding the Fourth Proportional to 260,898.20, 391,347.30 and 73,909.70
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Solution
The fourth proportional to 260,898.20, 391,347.30 and 73,909.70 is: 110,864.55
Step by Step Solution
- Step 1: Write the proportion equation
260,898.20 : 391,347.30 = 73,909.70 : x - Step 2: Convert to fraction form
260,898.20/391,347.30 = 73,909.70/x - Step 3: Cross multiply
260,898.20x = 391,347.30 × 73,909.70 - Step 4: Simplify right side
260,898.20x = 28,924,361,538.81 - Step 5: Solve for x
x = 28,924,361,538.81/260,898.20 - Step 6: Final answer
x = 110,864.55
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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.