Finding the Fourth Proportional to 381,781.02, 572,619.21 and 211,318.03
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Solution
The fourth proportional to 381,781.02, 572,619.21 and 211,318.03 is: 316,948.09
Step by Step Solution
- Step 1: Write the proportion equation
381,781.02 : 572,619.21 = 211,318.03 : x - Step 2: Convert to fraction form
381,781.02/572,619.21 = 211,318.03/x - Step 3: Cross multiply
381,781.02x = 572,619.21 × 211,318.03 - Step 4: Simplify right side
381,781.02x = 121,004,763,397.36 - Step 5: Solve for x
x = 121,004,763,397.36/381,781.02 - Step 6: Final answer
x = 316,948.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.