Finding the Fourth Proportional to 194,878.08, 268,931.60 and 105,454.08
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Solution
The fourth proportional to 194,878.08, 268,931.60 and 105,454.08 is: 145,526.55
Step by Step Solution
- Step 1: Write the proportion equation
194,878.08 : 268,931.60 = 105,454.08 : x - Step 2: Convert to fraction form
194,878.08/268,931.60 = 105,454.08/x - Step 3: Cross multiply
194,878.08x = 268,931.60 × 105,454.08 - Step 4: Simplify right side
194,878.08x = 28,359,934,460.93 - Step 5: Solve for x
x = 28,359,934,460.93/194,878.08 - Step 6: Final answer
x = 145,526.55
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.