Finding the Fourth Proportional to 210,974.60, 291,133.68 and 115,462.84
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Solution
The fourth proportional to 210,974.60, 291,133.68 and 115,462.84 is: 159,332.55
Step by Step Solution
- Step 1: Write the proportion equation
210,974.60 : 291,133.68 = 115,462.84 : x - Step 2: Convert to fraction form
210,974.60/291,133.68 = 115,462.84/x - Step 3: Cross multiply
210,974.60x = 291,133.68 × 115,462.84 - Step 4: Simplify right side
210,974.60x = 33,615,121,512.45 - Step 5: Solve for x
x = 33,615,121,512.45/210,974.60 - Step 6: Final answer
x = 159,332.55
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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.