Finding the Fourth Proportional to 230,237.30, 317,722.68 and 128,262.62
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Solution
The fourth proportional to 230,237.30, 317,722.68 and 128,262.62 is: 176,999.74
Step by Step Solution
- Step 1: Write the proportion equation
230,237.30 : 317,722.68 = 128,262.62 : x - Step 2: Convert to fraction form
230,237.30/317,722.68 = 128,262.62/x - Step 3: Cross multiply
230,237.30x = 317,722.68 × 128,262.62 - Step 4: Simplify right side
230,237.30x = 40,751,941,781.61 - Step 5: Solve for x
x = 40,751,941,781.61/230,237.30 - Step 6: Final answer
x = 176,999.74
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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.