Finding the Fourth Proportional to 515,497.80, 773,246.70 and 136,417.80
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Solution
The fourth proportional to 515,497.80, 773,246.70 and 136,417.80 is: 204,626.70
Step by Step Solution
- Step 1: Write the proportion equation
515,497.80 : 773,246.70 = 136,417.80 : x - Step 2: Convert to fraction form
515,497.80/773,246.70 = 136,417.80/x - Step 3: Cross multiply
515,497.80x = 773,246.70 × 136,417.80 - Step 4: Simplify right side
515,497.80x = 105,484,613,671.26 - Step 5: Solve for x
x = 105,484,613,671.26/515,497.80 - Step 6: Final answer
x = 204,626.70
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Similar ratio
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1.5x scale
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.