Finding the Fourth Proportional to 260,585.68, 390,935.91 and 148,318.75
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Solution
The fourth proportional to 260,585.68, 390,935.91 and 148,318.75 is: 222,510.79
Step by Step Solution
- Step 1: Write the proportion equation
260,585.68 : 390,935.91 = 148,318.75 : x - Step 2: Convert to fraction form
260,585.68/390,935.91 = 148,318.75/x - Step 3: Cross multiply
260,585.68x = 390,935.91 × 148,318.75 - Step 4: Simplify right side
260,585.68x = 57,983,125,501.31 - Step 5: Solve for x
x = 57,983,125,501.31/260,585.68 - Step 6: Final answer
x = 222,510.79
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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.