Finding the Fourth Proportional to 155,332.16, 214,430.58 and 117,107.18
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Solution
The fourth proportional to 155,332.16, 214,430.58 and 117,107.18 is: 161,662.34
Step by Step Solution
- Step 1: Write the proportion equation
155,332.16 : 214,430.58 = 117,107.18 : x - Step 2: Convert to fraction form
155,332.16/214,430.58 = 117,107.18/x - Step 3: Cross multiply
155,332.16x = 214,430.58 × 117,107.18 - Step 4: Simplify right side
155,332.16x = 25,111,360,529.56 - Step 5: Solve for x
x = 25,111,360,529.56/155,332.16 - Step 6: Final answer
x = 161,662.34
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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.