Finding the Fourth Proportional to 399.08, 598.36 and 155.63
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Solution
The fourth proportional to 399.08, 598.36 and 155.63 is: 233.34
Step by Step Solution
- Step 1: Write the proportion equation
399.08 : 598.36 = 155.63 : x - Step 2: Convert to fraction form
399.08/598.36 = 155.63/x - Step 3: Cross multiply
399.08x = 598.36 × 155.63 - Step 4: Simplify right side
399.08x = 93,121.99 - Step 5: Solve for x
x = 93,121.99/399.08 - Step 6: Final answer
x = 233.34
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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.