Finding the Fourth Proportional to 192,781.32, 266,038.19 and 107,898.38
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Solution
The fourth proportional to 192,781.32, 266,038.19 and 107,898.38 is: 148,899.75
Step by Step Solution
- Step 1: Write the proportion equation
192,781.32 : 266,038.19 = 107,898.38 : x - Step 2: Convert to fraction form
192,781.32/266,038.19 = 107,898.38/x - Step 3: Cross multiply
192,781.32x = 266,038.19 × 107,898.38 - Step 4: Simplify right side
192,781.32x = 28,705,089,719.13 - Step 5: Solve for x
x = 28,705,089,719.13/192,781.32 - Step 6: Final answer
x = 148,899.75
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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.