Finding the Fourth Proportional to 259,448.60, 389,140.68 and 69,923.79
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Solution
The fourth proportional to 259,448.60, 389,140.68 and 69,923.79 is: 104,877.00
Step by Step Solution
- Step 1: Write the proportion equation
259,448.60 : 389,140.68 = 69,923.79 : x - Step 2: Convert to fraction form
259,448.60/389,140.68 = 69,923.79/x - Step 3: Cross multiply
259,448.60x = 389,140.68 × 69,923.79 - Step 4: Simplify right side
259,448.60x = 27,210,191,188.78 - Step 5: Solve for x
x = 27,210,191,188.78/259,448.60 - Step 6: Final answer
x = 104,877.00
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1.5x scale
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.