Finding the Fourth Proportional to 275,421.20, 413,204.70 and 97,909.70
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Solution
The fourth proportional to 275,421.20, 413,204.70 and 97,909.70 is: 146,890.47
Step by Step Solution
- Step 1: Write the proportion equation
275,421.20 : 413,204.70 = 97,909.70 : x - Step 2: Convert to fraction form
275,421.20/413,204.70 = 97,909.70/x - Step 3: Cross multiply
275,421.20x = 413,204.70 × 97,909.70 - Step 4: Simplify right side
275,421.20x = 40,456,748,215.59 - Step 5: Solve for x
x = 40,456,748,215.59/275,421.20 - Step 6: Final answer
x = 146,890.47
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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.