Finding the Fourth Proportional to 386,730.13, 533,785.68 and 264,272.11
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Solution
The fourth proportional to 386,730.13, 533,785.68 and 264,272.11 is: 364,762.55
Step by Step Solution
- Step 1: Write the proportion equation
386,730.13 : 533,785.68 = 264,272.11 : x - Step 2: Convert to fraction form
386,730.13/533,785.68 = 264,272.11/x - Step 3: Cross multiply
386,730.13x = 533,785.68 × 264,272.11 - Step 4: Simplify right side
386,730.13x = 141,064,667,941.39 - Step 5: Solve for x
x = 141,064,667,941.39/386,730.13 - Step 6: Final answer
x = 364,762.55
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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.