Finding the Fourth Proportional to 255,303.80, 352,309.74 and 142,124.12
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Solution
The fourth proportional to 255,303.80, 352,309.74 and 142,124.12 is: 196,125.99
Step by Step Solution
- Step 1: Write the proportion equation
255,303.80 : 352,309.74 = 142,124.12 : x - Step 2: Convert to fraction form
255,303.80/352,309.74 = 142,124.12/x - Step 3: Cross multiply
255,303.80x = 352,309.74 × 142,124.12 - Step 4: Simplify right side
255,303.80x = 50,071,711,764.93 - Step 5: Solve for x
x = 50,071,711,764.93/255,303.80 - Step 6: Final answer
x = 196,125.99
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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.