Finding the Fourth Proportional to 390.68, 586.26 and 203.08
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Solution
The fourth proportional to 390.68, 586.26 and 203.08 is: 304.74
Step by Step Solution
- Step 1: Write the proportion equation
390.68 : 586.26 = 203.08 : x - Step 2: Convert to fraction form
390.68/586.26 = 203.08/x - Step 3: Cross multiply
390.68x = 586.26 × 203.08 - Step 4: Simplify right side
390.68x = 119,055.99 - Step 5: Solve for x
x = 119,055.99/390.68 - Step 6: Final answer
x = 304.74
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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.