Finding the Fourth Proportional to 212,113.16, 318,102.08 and 69,931.94
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Solution
The fourth proportional to 212,113.16, 318,102.08 and 69,931.94 is: 104,875.60
Step by Step Solution
- Step 1: Write the proportion equation
212,113.16 : 318,102.08 = 69,931.94 : x - Step 2: Convert to fraction form
212,113.16/318,102.08 = 69,931.94/x - Step 3: Cross multiply
212,113.16x = 318,102.08 × 69,931.94 - Step 4: Simplify right side
212,113.16x = 22,245,495,572.44 - Step 5: Solve for x
x = 22,245,495,572.44/212,113.16 - Step 6: Final answer
x = 104,875.60
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.