Finding the Fourth Proportional to 430.36, 646.97 and 349.76
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Solution
The fourth proportional to 430.36, 646.97 and 349.76 is: 525.80
Step by Step Solution
- Step 1: Write the proportion equation
430.36 : 646.97 = 349.76 : x - Step 2: Convert to fraction form
430.36/646.97 = 349.76/x - Step 3: Cross multiply
430.36x = 646.97 × 349.76 - Step 4: Simplify right side
430.36x = 226,284.10 - Step 5: Solve for x
x = 226,284.10/430.36 - Step 6: Final answer
x = 525.80
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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.