Finding the Fourth Proportional to 318,827.60, 478,129.64 and 94,128.08
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Solution
The fourth proportional to 318,827.60, 478,129.64 and 94,128.08 is: 141,159.12
Step by Step Solution
- Step 1: Write the proportion equation
318,827.60 : 478,129.64 = 94,128.08 : x - Step 2: Convert to fraction form
318,827.60/478,129.64 = 94,128.08/x - Step 3: Cross multiply
318,827.60x = 478,129.64 × 94,128.08 - Step 4: Simplify right side
318,827.60x = 45,005,425,004.29 - Step 5: Solve for x
x = 45,005,425,004.29/318,827.60 - Step 6: Final answer
x = 141,159.12
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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.