Finding the Fourth Proportional to 392,798.61, 589,235.99 and 156,088.26
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Solution
The fourth proportional to 392,798.61, 589,235.99 and 156,088.26 is: 234,147.52
Step by Step Solution
- Step 1: Write the proportion equation
392,798.61 : 589,235.99 = 156,088.26 : x - Step 2: Convert to fraction form
392,798.61/589,235.99 = 156,088.26/x - Step 3: Cross multiply
392,798.61x = 589,235.99 × 156,088.26 - Step 4: Simplify right side
392,798.61x = 91,972,819,628.04 - Step 5: Solve for x
x = 91,972,819,628.04/392,798.61 - Step 6: Final answer
x = 234,147.52
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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.