Finding the Fourth Proportional to 247,005.99, 340,869.60 and 133,828.74
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Solution
The fourth proportional to 247,005.99, 340,869.60 and 133,828.74 is: 184,684.38
Step by Step Solution
- Step 1: Write the proportion equation
247,005.99 : 340,869.60 = 133,828.74 : x - Step 2: Convert to fraction form
247,005.99/340,869.60 = 133,828.74/x - Step 3: Cross multiply
247,005.99x = 340,869.60 × 133,828.74 - Step 4: Simplify right side
247,005.99x = 45,618,149,072.30 - Step 5: Solve for x
x = 45,618,149,072.30/247,005.99 - Step 6: Final answer
x = 184,684.38
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1.5x scale
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.