Finding the Fourth Proportional to 283,153.99, 390,752.55 and 155,829.58
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Solution
The fourth proportional to 283,153.99, 390,752.55 and 155,829.58 is: 215,044.84
Step by Step Solution
- Step 1: Write the proportion equation
283,153.99 : 390,752.55 = 155,829.58 : x - Step 2: Convert to fraction form
283,153.99/390,752.55 = 155,829.58/x - Step 3: Cross multiply
283,153.99x = 390,752.55 × 155,829.58 - Step 4: Simplify right side
283,153.99x = 60,890,805,750.43 - Step 5: Solve for x
x = 60,890,805,750.43/283,153.99 - Step 6: Final answer
x = 215,044.84
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.