Finding the Fourth Proportional to 257,474.84, 386,147.63 and 122,455.59
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Solution
The fourth proportional to 257,474.84, 386,147.63 and 122,455.59 is: 183,652.65
Step by Step Solution
- Step 1: Write the proportion equation
257,474.84 : 386,147.63 = 122,455.59 : x - Step 2: Convert to fraction form
257,474.84/386,147.63 = 122,455.59/x - Step 3: Cross multiply
257,474.84x = 386,147.63 × 122,455.59 - Step 4: Simplify right side
257,474.84x = 47,285,935,246.47 - Step 5: Solve for x
x = 47,285,935,246.47/257,474.84 - Step 6: Final answer
x = 183,652.65
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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.