Finding the Fourth Proportional to 403,038.12, 555,980.62 and 239,578.36
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Solution
The fourth proportional to 403,038.12, 555,980.62 and 239,578.36 is: 330,492.12
Step by Step Solution
- Step 1: Write the proportion equation
403,038.12 : 555,980.62 = 239,578.36 : x - Step 2: Convert to fraction form
403,038.12/555,980.62 = 239,578.36/x - Step 3: Cross multiply
403,038.12x = 555,980.62 × 239,578.36 - Step 4: Simplify right side
403,038.12x = 133,200,921,911.96 - Step 5: Solve for x
x = 133,200,921,911.96/403,038.12 - Step 6: Final answer
x = 330,492.12
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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.