Finding the Fourth Proportional to 423,800.81, 635,631.36 and 139,495.07
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Solution
The fourth proportional to 423,800.81, 635,631.36 and 139,495.07 is: 209,219.60
Step by Step Solution
- Step 1: Write the proportion equation
423,800.81 : 635,631.36 = 139,495.07 : x - Step 2: Convert to fraction form
423,800.81/635,631.36 = 139,495.07/x - Step 3: Cross multiply
423,800.81x = 635,631.36 × 139,495.07 - Step 4: Simplify right side
423,800.81x = 88,667,437,181.76 - Step 5: Solve for x
x = 88,667,437,181.76/423,800.81 - Step 6: Final answer
x = 209,219.60
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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.