Finding the Fourth Proportional to 291,986.60, 438,125.70 and 165,723.80
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Solution
The fourth proportional to 291,986.60, 438,125.70 and 165,723.80 is: 248,668.45
Step by Step Solution
- Step 1: Write the proportion equation
291,986.60 : 438,125.70 = 165,723.80 : x - Step 2: Convert to fraction form
291,986.60/438,125.70 = 165,723.80/x - Step 3: Cross multiply
291,986.60x = 438,125.70 × 165,723.80 - Step 4: Simplify right side
291,986.60x = 72,607,855,881.66 - Step 5: Solve for x
x = 72,607,855,881.66/291,986.60 - Step 6: Final answer
x = 248,668.45
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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.