Finding the Fourth Proportional to 312,226.03, 430,875.08 and 168,989.14
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Solution
The fourth proportional to 312,226.03, 430,875.08 and 168,989.14 is: 233,206.72
Step by Step Solution
- Step 1: Write the proportion equation
312,226.03 : 430,875.08 = 168,989.14 : x - Step 2: Convert to fraction form
312,226.03/430,875.08 = 168,989.14/x - Step 3: Cross multiply
312,226.03x = 430,875.08 × 168,989.14 - Step 4: Simplify right side
312,226.03x = 72,813,209,216.63 - Step 5: Solve for x
x = 72,813,209,216.63/312,226.03 - Step 6: Final answer
x = 233,206.72
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1.5x scale
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.