Finding the Fourth Proportional to 318,904.96, 478,355.52 and 97,288.96
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Solution
The fourth proportional to 318,904.96, 478,355.52 and 97,288.96 is: 145,932.85
Step by Step Solution
- Step 1: Write the proportion equation
318,904.96 : 478,355.52 = 97,288.96 : x - Step 2: Convert to fraction form
318,904.96/478,355.52 = 97,288.96/x - Step 3: Cross multiply
318,904.96x = 478,355.52 × 97,288.96 - Step 4: Simplify right side
318,904.96x = 46,538,711,051.06 - Step 5: Solve for x
x = 46,538,711,051.06/318,904.96 - Step 6: Final answer
x = 145,932.85
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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.