Finding the Fourth Proportional to 319,970.96, 478,750.36 and 191,410.96
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Solution
The fourth proportional to 319,970.96, 478,750.36 and 191,410.96 is: 286,394.95
Step by Step Solution
- Step 1: Write the proportion equation
319,970.96 : 478,750.36 = 191,410.96 : x - Step 2: Convert to fraction form
319,970.96/478,750.36 = 191,410.96/x - Step 3: Cross multiply
319,970.96x = 478,750.36 × 191,410.96 - Step 4: Simplify right side
319,970.96x = 91,638,066,007.95 - Step 5: Solve for x
x = 91,638,066,007.95/319,970.96 - Step 6: Final answer
x = 286,394.95
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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.