Finding the Fourth Proportional to 229,916.93, 317,312.98 and 139,270.23
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Solution
The fourth proportional to 229,916.93, 317,312.98 and 139,270.23 is: 192,209.65
Step by Step Solution
- Step 1: Write the proportion equation
229,916.93 : 317,312.98 = 139,270.23 : x - Step 2: Convert to fraction form
229,916.93/317,312.98 = 139,270.23/x - Step 3: Cross multiply
229,916.93x = 317,312.98 × 139,270.23 - Step 4: Simplify right side
229,916.93x = 44,192,251,358.41 - Step 5: Solve for x
x = 44,192,251,358.41/229,916.93 - Step 6: Final answer
x = 192,209.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.