Finding the Fourth Proportional to 140, 210.08 and 64
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Solution
The fourth proportional to 140, 210.08 and 64 is: 96.04
Step by Step Solution
- Step 1: Write the proportion equation
140 : 210.08 = 64 : x - Step 2: Convert to fraction form
140/210.08 = 64/x - Step 3: Cross multiply
140x = 210.08 × 64 - Step 4: Simplify right side
140x = 13,445.12 - Step 5: Solve for x
x = 13,445.12/140 - Step 6: Final answer
x = 96.04
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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.