Finding the Fourth Proportional to 230,698.56, 318,303.86 and 135,153.92
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Solution
The fourth proportional to 230,698.56, 318,303.86 and 135,153.92 is: 186,477.17
Step by Step Solution
- Step 1: Write the proportion equation
230,698.56 : 318,303.86 = 135,153.92 : x - Step 2: Convert to fraction form
230,698.56/318,303.86 = 135,153.92/x - Step 3: Cross multiply
230,698.56x = 318,303.86 × 135,153.92 - Step 4: Simplify right side
230,698.56x = 43,020,014,430.13 - Step 5: Solve for x
x = 43,020,014,430.13/230,698.56 - Step 6: Final answer
x = 186,477.17
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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.