Finding the Fourth Proportional to 278,449.40, 384,260.55 and 151,125.00
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Solution
The fourth proportional to 278,449.40, 384,260.55 and 151,125.00 is: 208,552.70
Step by Step Solution
- Step 1: Write the proportion equation
278,449.40 : 384,260.55 = 151,125.00 : x - Step 2: Convert to fraction form
278,449.40/384,260.55 = 151,125.00/x - Step 3: Cross multiply
278,449.40x = 384,260.55 × 151,125.00 - Step 4: Simplify right side
278,449.40x = 58,071,374,461.13 - Step 5: Solve for x
x = 58,071,374,461.13/278,449.40 - Step 6: Final answer
x = 208,552.70
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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.