Finding the Fourth Proportional to 218,938.36, 328,457.58 and 69,177.88
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Solution
The fourth proportional to 218,938.36, 328,457.58 and 69,177.88 is: 103,782.63
Step by Step Solution
- Step 1: Write the proportion equation
218,938.36 : 328,457.58 = 69,177.88 : x - Step 2: Convert to fraction form
218,938.36/328,457.58 = 69,177.88/x - Step 3: Cross multiply
218,938.36x = 328,457.58 × 69,177.88 - Step 4: Simplify right side
218,938.36x = 22,721,999,054.33 - Step 5: Solve for x
x = 22,721,999,054.33/218,938.36 - Step 6: Final answer
x = 103,782.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.