Finding the Fourth Proportional to 258,458.98, 387,688.81 and 125,358.84
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Solution
The fourth proportional to 258,458.98, 387,688.81 and 125,358.84 is: 188,038.43
Step by Step Solution
- Step 1: Write the proportion equation
258,458.98 : 387,688.81 = 125,358.84 : x - Step 2: Convert to fraction form
258,458.98/387,688.81 = 125,358.84/x - Step 3: Cross multiply
258,458.98x = 387,688.81 × 125,358.84 - Step 4: Simplify right side
258,458.98x = 48,600,219,071.66 - Step 5: Solve for x
x = 48,600,219,071.66/258,458.98 - Step 6: Final answer
x = 188,038.43
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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.