Finding the Fourth Proportional to 626,330.70, 939,491.55 and 153,011.70
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Solution
The fourth proportional to 626,330.70, 939,491.55 and 153,011.70 is: 229,516.45
Step by Step Solution
- Step 1: Write the proportion equation
626,330.70 : 939,491.55 = 153,011.70 : x - Step 2: Convert to fraction form
626,330.70/939,491.55 = 153,011.70/x - Step 3: Cross multiply
626,330.70x = 939,491.55 × 153,011.70 - Step 4: Simplify right side
626,330.70x = 143,753,199,201.14 - Step 5: Solve for x
x = 143,753,199,201.14/626,330.70 - Step 6: Final answer
x = 229,516.45
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Double scale
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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.