Finding the Fourth Proportional to 260,071.48, 390,161.76 and 147,803.68
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Solution
The fourth proportional to 260,071.48, 390,161.76 and 147,803.68 is: 221,736.52
Step by Step Solution
- Step 1: Write the proportion equation
260,071.48 : 390,161.76 = 147,803.68 : x - Step 2: Convert to fraction form
260,071.48/390,161.76 = 147,803.68/x - Step 3: Cross multiply
260,071.48x = 390,161.76 × 147,803.68 - Step 4: Simplify right side
260,071.48x = 57,667,343,923.28 - Step 5: Solve for x
x = 57,667,343,923.28/260,071.48 - Step 6: Final answer
x = 221,736.52
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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.