Finding the Fourth Proportional to 346,718.70, 520,078.05 and 307,352.70
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Solution
The fourth proportional to 346,718.70, 520,078.05 and 307,352.70 is: 461,029.05
Step by Step Solution
- Step 1: Write the proportion equation
346,718.70 : 520,078.05 = 307,352.70 : x - Step 2: Convert to fraction form
346,718.70/520,078.05 = 307,352.70/x - Step 3: Cross multiply
346,718.70x = 520,078.05 × 307,352.70 - Step 4: Simplify right side
346,718.70x = 159,847,392,878.24 - Step 5: Solve for x
x = 159,847,392,878.24/346,718.70 - Step 6: Final answer
x = 461,029.05
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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.