Finding the Fourth Proportional to 409,404.08, 564,969.12 and 228,115.28
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Solution
The fourth proportional to 409,404.08, 564,969.12 and 228,115.28 is: 314,794.34
Step by Step Solution
- Step 1: Write the proportion equation
409,404.08 : 564,969.12 = 228,115.28 : x - Step 2: Convert to fraction form
409,404.08/564,969.12 = 228,115.28/x - Step 3: Cross multiply
409,404.08x = 564,969.12 × 228,115.28 - Step 4: Simplify right side
409,404.08x = 128,878,089,000.15 - Step 5: Solve for x
x = 128,878,089,000.15/409,404.08 - Step 6: Final answer
x = 314,794.34
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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.