Finding the Fourth Proportional to 409,401.62, 564,958.14 and 228,108.88
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Solution
The fourth proportional to 409,401.62, 564,958.14 and 228,108.88 is: 314,781.30
Step by Step Solution
- Step 1: Write the proportion equation
409,401.62 : 564,958.14 = 228,108.88 : x - Step 2: Convert to fraction form
409,401.62/564,958.14 = 228,108.88/x - Step 3: Cross multiply
409,401.62x = 564,958.14 × 228,108.88 - Step 4: Simplify right side
409,401.62x = 128,871,971,285.13 - Step 5: Solve for x
x = 128,871,971,285.13/409,401.62 - Step 6: Final answer
x = 314,781.30
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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.