Finding the Fourth Proportional to 278,516.81, 384,354.35 and 157,681.41
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Solution
The fourth proportional to 278,516.81, 384,354.35 and 157,681.41 is: 217,601.00
Step by Step Solution
- Step 1: Write the proportion equation
278,516.81 : 384,354.35 = 157,681.41 : x - Step 2: Convert to fraction form
278,516.81/384,354.35 = 157,681.41/x - Step 3: Cross multiply
278,516.81x = 384,354.35 × 157,681.41 - Step 4: Simplify right side
278,516.81x = 60,605,535,059.23 - Step 5: Solve for x
x = 60,605,535,059.23/278,516.81 - Step 6: Final answer
x = 217,601.00
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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.