Finding the Fourth Proportional to 368,304.99, 508,266.14 and 217,401.99
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Solution
The fourth proportional to 368,304.99, 508,266.14 and 217,401.99 is: 300,017.85
Step by Step Solution
- Step 1: Write the proportion equation
368,304.99 : 508,266.14 = 217,401.99 : x - Step 2: Convert to fraction form
368,304.99/508,266.14 = 217,401.99/x - Step 3: Cross multiply
368,304.99x = 508,266.14 × 217,401.99 - Step 4: Simplify right side
368,304.99x = 110,498,070,285.62 - Step 5: Solve for x
x = 110,498,070,285.62/368,304.99 - Step 6: Final answer
x = 300,017.85
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.