Finding the Fourth Proportional to 276,746.22, 415,130.26 and 77,084.05
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Solution
The fourth proportional to 276,746.22, 415,130.26 and 77,084.05 is: 115,629.12
Step by Step Solution
- Step 1: Write the proportion equation
276,746.22 : 415,130.26 = 77,084.05 : x - Step 2: Convert to fraction form
276,746.22/415,130.26 = 77,084.05/x - Step 3: Cross multiply
276,746.22x = 415,130.26 × 77,084.05 - Step 4: Simplify right side
276,746.22x = 31,999,921,332.93 - Step 5: Solve for x
x = 31,999,921,332.93/276,746.22 - Step 6: Final answer
x = 115,629.12
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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.