Finding the Fourth Proportional to 420,888.98, 631,426.76 and 121,346.19
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Solution
The fourth proportional to 420,888.98, 631,426.76 and 121,346.19 is: 182,046.18
Step by Step Solution
- Step 1: Write the proportion equation
420,888.98 : 631,426.76 = 121,346.19 : x - Step 2: Convert to fraction form
420,888.98/631,426.76 = 121,346.19/x - Step 3: Cross multiply
420,888.98x = 631,426.76 × 121,346.19 - Step 4: Simplify right side
420,888.98x = 76,621,228,842.99 - Step 5: Solve for x
x = 76,621,228,842.99/420,888.98 - Step 6: Final answer
x = 182,046.18
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.