Finding the Fourth Proportional to 235,795.04, 353,479.19 and 86,000.21
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Solution
The fourth proportional to 235,795.04, 353,479.19 and 86,000.21 is: 128,922.49
Step by Step Solution
- Step 1: Write the proportion equation
235,795.04 : 353,479.19 = 86,000.21 : x - Step 2: Convert to fraction form
235,795.04/353,479.19 = 86,000.21/x - Step 3: Cross multiply
235,795.04x = 353,479.19 × 86,000.21 - Step 4: Simplify right side
235,795.04x = 30,399,282,373.23 - Step 5: Solve for x
x = 30,399,282,373.23/235,795.04 - Step 6: Final answer
x = 128,922.49
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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.