Finding the Fourth Proportional to 438,986.12, 657,970.90 and 201,831.08
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Solution
The fourth proportional to 438,986.12, 657,970.90 and 201,831.08 is: 302,512.92
Step by Step Solution
- Step 1: Write the proportion equation
438,986.12 : 657,970.90 = 201,831.08 : x - Step 2: Convert to fraction form
438,986.12/657,970.90 = 201,831.08/x - Step 3: Cross multiply
438,986.12x = 657,970.90 × 201,831.08 - Step 4: Simplify right side
438,986.12x = 132,798,973,561.14 - Step 5: Solve for x
x = 132,798,973,561.14/438,986.12 - Step 6: Final answer
x = 302,512.92
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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.