Finding the Fourth Proportional to 339,332.24, 508,979.64 and 139,602.08
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Solution
The fourth proportional to 339,332.24, 508,979.64 and 139,602.08 is: 209,395.42
Step by Step Solution
- Step 1: Write the proportion equation
339,332.24 : 508,979.64 = 139,602.08 : x - Step 2: Convert to fraction form
339,332.24/508,979.64 = 139,602.08/x - Step 3: Cross multiply
339,332.24x = 508,979.64 × 139,602.08 - Step 4: Simplify right side
339,332.24x = 71,054,616,421.65 - Step 5: Solve for x
x = 71,054,616,421.65/339,332.24 - Step 6: Final answer
x = 209,395.42
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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.