Finding the Fourth Proportional to 306,312.08, 459,000.32 and 128,722.02
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Solution
The fourth proportional to 306,312.08, 459,000.32 and 128,722.02 is: 192,886.45
Step by Step Solution
- Step 1: Write the proportion equation
306,312.08 : 459,000.32 = 128,722.02 : x - Step 2: Convert to fraction form
306,312.08/459,000.32 = 128,722.02/x - Step 3: Cross multiply
306,312.08x = 459,000.32 × 128,722.02 - Step 4: Simplify right side
306,312.08x = 59,083,448,371.05 - Step 5: Solve for x
x = 59,083,448,371.05/306,312.08 - Step 6: Final answer
x = 192,886.45
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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.