Finding the Fourth Proportional to 230,590.01, 318,214.65 and 128,622.08
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Solution
The fourth proportional to 230,590.01, 318,214.65 and 128,622.08 is: 177,498.71
Step by Step Solution
- Step 1: Write the proportion equation
230,590.01 : 318,214.65 = 128,622.08 : x - Step 2: Convert to fraction form
230,590.01/318,214.65 = 128,622.08/x - Step 3: Cross multiply
230,590.01x = 318,214.65 × 128,622.08 - Step 4: Simplify right side
230,590.01x = 40,929,428,578.40 - Step 5: Solve for x
x = 40,929,428,578.40/230,590.01 - Step 6: Final answer
x = 177,498.71
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1.5x scale
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.