Finding the Fourth Proportional to 381,651.20, 572,476.80 and 97,341.20
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Solution
The fourth proportional to 381,651.20, 572,476.80 and 97,341.20 is: 146,011.80
Step by Step Solution
- Step 1: Write the proportion equation
381,651.20 : 572,476.80 = 97,341.20 : x - Step 2: Convert to fraction form
381,651.20/572,476.80 = 97,341.20/x - Step 3: Cross multiply
381,651.20x = 572,476.80 × 97,341.20 - Step 4: Simplify right side
381,651.20x = 55,725,578,684.16 - Step 5: Solve for x
x = 55,725,578,684.16/381,651.20 - Step 6: Final answer
x = 146,011.80
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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.