Finding the Fourth Proportional to 319,098.70, 478,210.65 and 260,049.70
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Solution
The fourth proportional to 319,098.70, 478,210.65 and 260,049.70 is: 389,718.09
Step by Step Solution
- Step 1: Write the proportion equation
319,098.70 : 478,210.65 = 260,049.70 : x - Step 2: Convert to fraction form
319,098.70/478,210.65 = 260,049.70/x - Step 3: Cross multiply
319,098.70x = 478,210.65 × 260,049.70 - Step 4: Simplify right side
319,098.70x = 124,358,536,069.31 - Step 5: Solve for x
x = 124,358,536,069.31/319,098.70 - Step 6: Final answer
x = 389,718.09
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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.