Finding the Fourth Proportional to 353,156.41, 530,067.53 and 128,733.76
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Solution
The fourth proportional to 353,156.41, 530,067.53 and 128,733.76 is: 193,221.99
Step by Step Solution
- Step 1: Write the proportion equation
353,156.41 : 530,067.53 = 128,733.76 : x - Step 2: Convert to fraction form
353,156.41/530,067.53 = 128,733.76/x - Step 3: Cross multiply
353,156.41x = 530,067.53 × 128,733.76 - Step 4: Simplify right side
353,156.41x = 68,237,585,547.14 - Step 5: Solve for x
x = 68,237,585,547.14/353,156.41 - Step 6: Final answer
x = 193,221.99
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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.