Finding the Fourth Proportional to 320,423.79, 442,176.08 and 177,178.94
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Solution
The fourth proportional to 320,423.79, 442,176.08 and 177,178.94 is: 244,502.09
Step by Step Solution
- Step 1: Write the proportion equation
320,423.79 : 442,176.08 = 177,178.94 : x - Step 2: Convert to fraction form
320,423.79/442,176.08 = 177,178.94/x - Step 3: Cross multiply
320,423.79x = 442,176.08 × 177,178.94 - Step 4: Simplify right side
320,423.79x = 78,344,286,050.98 - Step 5: Solve for x
x = 78,344,286,050.98/320,423.79 - Step 6: Final answer
x = 244,502.09
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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.