Finding the Fourth Proportional to 465.08, 641.82 and 307.98
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Solution
The fourth proportional to 465.08, 641.82 and 307.98 is: 425.02
Step by Step Solution
- Step 1: Write the proportion equation
465.08 : 641.82 = 307.98 : x - Step 2: Convert to fraction form
465.08/641.82 = 307.98/x - Step 3: Cross multiply
465.08x = 641.82 × 307.98 - Step 4: Simplify right side
465.08x = 197,667.72 - Step 5: Solve for x
x = 197,667.72/465.08 - Step 6: Final answer
x = 425.02
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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.