Finding the Fourth Proportional to 302,455.70, 453,683.55 and 209,143.70
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Solution
The fourth proportional to 302,455.70, 453,683.55 and 209,143.70 is: 313,715.55
Step by Step Solution
- Step 1: Write the proportion equation
302,455.70 : 453,683.55 = 209,143.70 : x - Step 2: Convert to fraction form
302,455.70/453,683.55 = 209,143.70/x - Step 3: Cross multiply
302,455.70x = 453,683.55 × 209,143.70 - Step 4: Simplify right side
302,455.70x = 94,885,056,276.14 - Step 5: Solve for x
x = 94,885,056,276.14/302,455.70 - Step 6: Final answer
x = 313,715.55
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1.5x scale
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.