Finding the Fourth Proportional to 314,266.68, 471,348.54 and 86,509.08
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Solution
The fourth proportional to 314,266.68, 471,348.54 and 86,509.08 is: 129,749.45
Step by Step Solution
- Step 1: Write the proportion equation
314,266.68 : 471,348.54 = 86,509.08 : x - Step 2: Convert to fraction form
314,266.68/471,348.54 = 86,509.08/x - Step 3: Cross multiply
314,266.68x = 471,348.54 × 86,509.08 - Step 4: Simplify right side
314,266.68x = 40,775,928,554.74 - Step 5: Solve for x
x = 40,775,928,554.74/314,266.68 - Step 6: Final answer
x = 129,749.45
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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.