Finding the Fourth Proportional to 210,303.12, 290,214.48 and 119,657.12
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Solution
The fourth proportional to 210,303.12, 290,214.48 and 119,657.12 is: 165,124.65
Step by Step Solution
- Step 1: Write the proportion equation
210,303.12 : 290,214.48 = 119,657.12 : x - Step 2: Convert to fraction form
210,303.12/290,214.48 = 119,657.12/x - Step 3: Cross multiply
210,303.12x = 290,214.48 × 119,657.12 - Step 4: Simplify right side
210,303.12x = 34,726,228,859.10 - Step 5: Solve for x
x = 34,726,228,859.10/210,303.12 - Step 6: Final answer
x = 165,124.65
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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.