Finding the Fourth Proportional to 247,312.80, 370,981.35 and 129,214.80
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Solution
The fourth proportional to 247,312.80, 370,981.35 and 129,214.80 is: 193,828.55
Step by Step Solution
- Step 1: Write the proportion equation
247,312.80 : 370,981.35 = 129,214.80 : x - Step 2: Convert to fraction form
247,312.80/370,981.35 = 129,214.80/x - Step 3: Cross multiply
247,312.80x = 370,981.35 × 129,214.80 - Step 4: Simplify right side
247,312.80x = 47,936,280,943.98 - Step 5: Solve for x
x = 47,936,280,943.98/247,312.80 - Step 6: Final answer
x = 193,828.55
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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.