Finding the Fourth Proportional to 409,670.96, 614,506.44 and 129,210.08
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Solution
The fourth proportional to 409,670.96, 614,506.44 and 129,210.08 is: 193,815.12
Step by Step Solution
- Step 1: Write the proportion equation
409,670.96 : 614,506.44 = 129,210.08 : x - Step 2: Convert to fraction form
409,670.96/614,506.44 = 129,210.08/x - Step 3: Cross multiply
409,670.96x = 614,506.44 × 129,210.08 - Step 4: Simplify right side
409,670.96x = 79,400,426,272.92 - Step 5: Solve for x
x = 79,400,426,272.92/409,670.96 - Step 6: Final answer
x = 193,815.12
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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.