Finding the Fourth Proportional to 432.68, 596.86 and 257.99
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Solution
The fourth proportional to 432.68, 596.86 and 257.99 is: 355.88
Step by Step Solution
- Step 1: Write the proportion equation
432.68 : 596.86 = 257.99 : x - Step 2: Convert to fraction form
432.68/596.86 = 257.99/x - Step 3: Cross multiply
432.68x = 596.86 × 257.99 - Step 4: Simplify right side
432.68x = 153,980.28 - Step 5: Solve for x
x = 153,980.28/432.68 - Step 6: Final answer
x = 355.88
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.