Finding the Fourth Proportional to 221,291.70, 331,937.55 and 73,547.70
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Solution
The fourth proportional to 221,291.70, 331,937.55 and 73,547.70 is: 110,321.55
Step by Step Solution
- Step 1: Write the proportion equation
221,291.70 : 331,937.55 = 73,547.70 : x - Step 2: Convert to fraction form
221,291.70/331,937.55 = 73,547.70/x - Step 3: Cross multiply
221,291.70x = 331,937.55 × 73,547.70 - Step 4: Simplify right side
221,291.70x = 24,413,243,346.14 - Step 5: Solve for x
x = 24,413,243,346.14/221,291.70 - Step 6: Final answer
x = 110,321.55
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1.5x scale
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.