Finding the Fourth Proportional to 318,746.29, 478,171.33 and 94,129.44
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Solution
The fourth proportional to 318,746.29, 478,171.33 and 94,129.44 is: 141,209.49
Step by Step Solution
- Step 1: Write the proportion equation
318,746.29 : 478,171.33 = 94,129.44 : x - Step 2: Convert to fraction form
318,746.29/478,171.33 = 94,129.44/x - Step 3: Cross multiply
318,746.29x = 478,171.33 × 94,129.44 - Step 4: Simplify right side
318,746.29x = 45,010,001,787.80 - Step 5: Solve for x
x = 45,010,001,787.80/318,746.29 - Step 6: Final answer
x = 141,209.49
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.