Finding the Fourth Proportional to 354,023.91, 530,962.05 and 129,490.09
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Solution
The fourth proportional to 354,023.91, 530,962.05 and 129,490.09 is: 194,208.14
Step by Step Solution
- Step 1: Write the proportion equation
354,023.91 : 530,962.05 = 129,490.09 : x - Step 2: Convert to fraction form
354,023.91/530,962.05 = 129,490.09/x - Step 3: Cross multiply
354,023.91x = 530,962.05 × 129,490.09 - Step 4: Simplify right side
354,023.91x = 68,754,323,641.08 - Step 5: Solve for x
x = 68,754,323,641.08/354,023.91 - Step 6: Final answer
x = 194,208.14
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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.