Finding the Fourth Proportional to 230,044.55, 317,455.29 and 128,070.02
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Solution
The fourth proportional to 230,044.55, 317,455.29 and 128,070.02 is: 176,733.18
Step by Step Solution
- Step 1: Write the proportion equation
230,044.55 : 317,455.29 = 128,070.02 : x - Step 2: Convert to fraction form
230,044.55/317,455.29 = 128,070.02/x - Step 3: Cross multiply
230,044.55x = 317,455.29 × 128,070.02 - Step 4: Simplify right side
230,044.55x = 40,656,503,752.13 - Step 5: Solve for x
x = 40,656,503,752.13/230,044.55 - Step 6: Final answer
x = 176,733.18
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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.