Finding the Fourth Proportional to 318,102.08, 438,981.76 and 174,876.80
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Solution
The fourth proportional to 318,102.08, 438,981.76 and 174,876.80 is: 241,330.47
Step by Step Solution
- Step 1: Write the proportion equation
318,102.08 : 438,981.76 = 174,876.80 : x - Step 2: Convert to fraction form
318,102.08/438,981.76 = 174,876.80/x - Step 3: Cross multiply
318,102.08x = 438,981.76 × 174,876.80 - Step 4: Simplify right side
318,102.08x = 76,767,725,447.17 - Step 5: Solve for x
x = 76,767,725,447.17/318,102.08 - Step 6: Final answer
x = 241,330.47
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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.